<p class="MsoNormal" style="line-height: 150%;"><span style="font-size:10.0pt;mso-bidi-font-size:10.5pt;line-height:150%;font-family:
"微软雅黑","sans-serif";mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman";mso-bidi-font-family:"Times New Roman";color:windowtext">作者</span><span style="font-size:10.0pt;mso-bidi-font-size:10.5pt;line-height:150%;font-family:
"Times New Roman","serif";mso-fareast-font-family:微软雅黑;color:windowtext"><span style="mso-spacerun:yes"> </span></span><b style="mso-bidi-font-weight:normal"><span style="font-size:9.5pt;line-height:150%;font-family:"Times New Roman","serif";
mso-fareast-font-family:"Microsoft YaHei UI";color:windowtext;background:white">Xavier Xiong</span></b><span style="font-family:"Times New Roman","serif";mso-fareast-font-family:微软雅黑;
color:windowtext"><o:p></o:p></span></p>
<p class="MsoNormal" style="text-indent:20.0pt;mso-char-indent-count:2.0;
line-height:150%"><span style="font-size:10.0pt;line-height:150%;font-family:
"微软雅黑","sans-serif";mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman";mso-bidi-font-family:"Times New Roman";color:windowtext">在模拟的世界里，微弱电流信号的测量通常是工程师需要面对的棘手挑战。随着各种仪器仪表的产品性能迭代以及各种新应用的层出不穷，对于微弱电流的测量范围已经从微安级（</span><span style="font-size:10.0pt;line-height:150%;font-family:"Times New Roman","serif";
mso-fareast-font-family:微软雅黑;color:windowtext">μA</span><span style="font-size:
10.0pt;line-height:150%;font-family:"微软雅黑","sans-serif";mso-ascii-font-family:
"Times New Roman";mso-hansi-font-family:"Times New Roman";mso-bidi-font-family:
"Times New Roman";color:windowtext">）提升到了皮安级（</span><span style="font-size:
10.0pt;line-height:150%;font-family:"Times New Roman","serif";mso-fareast-font-family:
微软雅黑;color:windowtext">pA</span><span style="font-size:10.0pt;line-height:150%;
font-family:"微软雅黑","sans-serif";mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman";mso-bidi-font-family:"Times New Roman";
color:windowtext">），提升了足足一百万倍。</span><span style="font-size:10.0pt;line-height:
150%;font-family:"Times New Roman","serif";mso-fareast-font-family:微软雅黑;
color:windowtext"><o:p></o:p></span></p>
<p class="MsoNormal" style="text-indent:20.0pt;mso-char-indent-count:2.0;
line-height:150%"><span style="font-size:10.0pt;line-height:150%;font-family:
"微软雅黑","sans-serif";mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman";mso-bidi-font-family:"Times New Roman";color:windowtext">为了测量微弱的电流，通常</span><span style="font-size:10.0pt;line-height:150%;font-family:"微软雅黑","sans-serif";
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";
mso-bidi-font-family:"Times New Roman";color:windowtext;mso-ansi-language:EN-US">工程师</span><span style="font-size:10.0pt;line-height:150%;font-family:"微软雅黑","sans-serif";
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";
mso-bidi-font-family:"Times New Roman";color:windowtext">将运放进行跨阻方式连接，见图</span><span style="font-size:10.0pt;line-height:150%;font-family:"Times New Roman","serif";
mso-fareast-font-family:微软雅黑;color:windowtext">1</span><span style="font-size:
10.0pt;line-height:150%;font-family:"微软雅黑","sans-serif";mso-ascii-font-family:
"Times New Roman";mso-hansi-font-family:"Times New Roman";mso-bidi-font-family:
"Times New Roman";color:windowtext">所示。</span><span style="font-size:10.0pt;
line-height:150%;font-family:"Times New Roman","serif";mso-fareast-font-family:
微软雅黑;color:windowtext"><o:p></o:p></span></p>
<img alt="图 1 跨阻放大器" data-align="center" data-entity-type="file" data-entity-uuid="3bb52af8-5bc2-4012-bd1d-e70a067525ab" src="http://new.eetrend.com/files/2020-11/wen_zhang_/100058313-111067-1.png&…; />
<p align="center" class="MsoCaption" style="text-align:center;line-height:150%"><span style="font-family:"微软雅黑","sans-serif";mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman";mso-bidi-font-family:"Times New Roman";
color:windowtext">图</span><span style="font-family:"Times New Roman","serif";
mso-fareast-font-family:微软雅黑;color:windowtext"> </span><!--[if supportFields]><span
style='font-family:"Times New Roman","serif";mso-fareast-font-family:微软雅黑;
color:windowtext'><span style='mso-element:field-begin'></span><span
style='mso-spacerun:yes'> </span>SEQ </span><span style='font-family:"微软雅黑","sans-serif";
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";
mso-bidi-font-family:"Times New Roman";color:windowtext'>图表</span><span
style='font-family:"Times New Roman","serif";mso-fareast-font-family:微软雅黑;
color:windowtext'> \* ARABIC <span style='mso-element:field-separator'></span></span><![endif]--><span style="font-family:"Times New Roman","serif";mso-fareast-font-family:微软雅黑;
color:windowtext">1</span><!--[if supportFields]><span style='font-family:"Times New Roman","serif";
mso-fareast-font-family:微软雅黑;color:windowtext'><span style='mso-element:field-end'></span></span><![endif]--><span style="font-family:"Times New Roman","serif";mso-fareast-font-family:微软雅黑;
color:windowtext"> </span><span style="font-family:"微软雅黑","sans-serif";
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";
mso-bidi-font-family:"Times New Roman";color:windowtext">跨阻放大器</span><span style="font-family:"Times New Roman","serif";mso-fareast-font-family:微软雅黑;
color:windowtext"><o:p></o:p></span></p>
![http://new.eetrend.com/files/2020-11/wen_zhang_/100058313-111067-1.png&…](http://new.eetrend.com/files/2020-11/wen_zhang_/100058313-111067-1.png"){kind=link}
<p class="MsoNormal" style="text-indent:20.0pt;mso-char-indent-count:2.0;
line-height:150%;mso-layout-grid-align:none"><span style="font-size:10.0pt;
line-height:150%;font-family:"微软雅黑","sans-serif";mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman";mso-bidi-font-family:"Times New Roman";
color:windowtext">理想运算放大器的反相输入端处于虚地，输入端所有电流流经反馈电阻</span><span style="font-size:
10.0pt;line-height:150%;font-family:"Times New Roman","serif";mso-fareast-font-family:
微软雅黑;color:windowtext"> R<sub> f</sub> </span><span style="font-size:10.0pt;
line-height:150%;font-family:"微软雅黑","sans-serif";mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman";mso-bidi-font-family:"Times New Roman";
color:windowtext">，因此输出电压</span><span style="font-size:10.0pt;line-height:150%;
font-family:"Times New Roman","serif";mso-fareast-font-family:微软雅黑;color:windowtext">V<sub>out</sub> = R<sub> f</sub> × I <sub>d</sub> </span><span style="font-size:10.0pt;
line-height:150%;font-family:"微软雅黑","sans-serif";mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman";mso-bidi-font-family:"Times New Roman";
color:windowtext">。</span><span style="font-size:10.0pt;line-height:150%;
font-family:"Times New Roman","serif";mso-fareast-font-family:微软雅黑;color:windowtext"><o:p></o:p></span></p>
<p class="MsoNormal" style="text-indent:20.0pt;mso-char-indent-count:2.0;
line-height:150%"><span style="font-size:10.0pt;line-height:150%;font-family:
"微软雅黑","sans-serif";mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman";mso-bidi-font-family:"Times New Roman";color:windowtext">所以</span><span style="font-size:10.0pt;line-height:150%;font-family:"微软雅黑","sans-serif";
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";
mso-bidi-font-family:"Times New Roman";color:windowtext;mso-ansi-language:EN-US">工程师</span><span style="font-size:10.0pt;line-height:150%;font-family:"微软雅黑","sans-serif";
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";
mso-bidi-font-family:"Times New Roman";color:windowtext">只需要选择一个</span><span style="font-size:10.0pt;line-height:150%;font-family:"Times New Roman","serif";
mso-fareast-font-family:微软雅黑;color:windowtext">R<sub>f</sub></span><span style="font-size:10.0pt;line-height:150%;font-family:"微软雅黑","sans-serif";
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";
mso-bidi-font-family:"Times New Roman";color:windowtext">为</span><span style="font-size:10.0pt;line-height:150%;font-family:"Times New Roman","serif";
mso-fareast-font-family:微软雅黑;color:windowtext">10GΩ</span><span style="font-size:10.0pt;line-height:150%;font-family:"微软雅黑","sans-serif";
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";
mso-bidi-font-family:"Times New Roman";color:windowtext">的电阻，就可以将</span><span style="font-size:10.0pt;line-height:150%;font-family:"Times New Roman","serif";
mso-fareast-font-family:微软雅黑;color:windowtext">1pA</span><span style="font-size:10.0pt;line-height:150%;font-family:"微软雅黑","sans-serif";
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";
mso-bidi-font-family:"Times New Roman";color:windowtext">的电流信号变换成</span><span style="font-size:10.0pt;line-height:150%;font-family:"Times New Roman","serif";
mso-fareast-font-family:微软雅黑;color:windowtext">10mV</span><span style="font-size:10.0pt;line-height:150%;font-family:"微软雅黑","sans-serif";
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";
mso-bidi-font-family:"Times New Roman";color:windowtext">的电压信号了吗？答案是否定的。</span><span style="font-size:10.0pt;line-height:150%;font-family:"微软雅黑","sans-serif";
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";
mso-bidi-font-family:"Times New Roman";color:windowtext;mso-ansi-language:EN-US">工程师</span><span style="font-size:10.0pt;line-height:150%;font-family:"微软雅黑","sans-serif";
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";
mso-bidi-font-family:"Times New Roman";color:windowtext">会</span><span style="font-size:10.0pt;line-height:150%;font-family:"微软雅黑","sans-serif";
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";
mso-bidi-font-family:"Times New Roman";color:windowtext;mso-ansi-language:EN-US">面临</span><span style="font-size:10.0pt;line-height:150%;font-family:"微软雅黑","sans-serif";
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";
mso-bidi-font-family:"Times New Roman";color:windowtext">非常多的挑战：来自运放自身的偏置电流误差，环境温度与湿度的变化，</span><span style="font-size:10.0pt;line-height:150%;font-family:"Times New Roman","serif";
mso-fareast-font-family:微软雅黑;color:windowtext">PCB</span><span style="font-size:10.0pt;line-height:150%;font-family:"微软雅黑","sans-serif";
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";
mso-bidi-font-family:"Times New Roman";color:windowtext">板的泄漏电流，输入端与线路噪声，电磁干扰等等，这些都是摆在精密测量方面的难题。</span><span style="font-size:10.0pt;line-height:150%;font-family:"Times New Roman","serif";
mso-fareast-font-family:微软雅黑;color:windowtext"><o:p></o:p></span></p>
<p class="MsoNormal" style="text-indent:20.0pt;mso-char-indent-count:2.0;
line-height:150%"><span style="font-size:10.0pt;line-height:150%;font-family:
"微软雅黑","sans-serif";mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman";mso-bidi-font-family:"Times New Roman";color:windowtext">选择一款超低偏置电流的放大器成为了工程师挑战系统性能的关键。</span><span style="font-size:10.0pt;line-height:150%;font-family:"Times New Roman","serif";
mso-fareast-font-family:微软雅黑;color:windowtext">1987</span><span style="font-size:10.0pt;line-height:150%;font-family:"微软雅黑","sans-serif";
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";
mso-bidi-font-family:"Times New Roman";color:windowtext">年，一款</span><span style="font-size:10.0pt;line-height:150%;font-family:"Times New Roman","serif";
mso-fareast-font-family:微软雅黑;color:windowtext">JFET</span><span style="font-size:10.0pt;line-height:150%;font-family:"微软雅黑","sans-serif";
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";
mso-bidi-font-family:"Times New Roman";color:windowtext">放大器</span><span style="font-size:10.0pt;line-height:150%;font-family:"Times New Roman","serif";
mso-fareast-font-family:微软雅黑;color:windowtext">AD549</span><span style="font-size:10.0pt;line-height:150%;font-family:"微软雅黑","sans-serif";
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";
mso-bidi-font-family:"Times New Roman";color:windowtext">横空出世，成为了精密电流测量应用三十年</span><span style="font-size:10.0pt;line-height:150%;font-family:"微软雅黑","sans-serif";
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";
mso-bidi-font-family:"Times New Roman";color:windowtext;mso-ansi-language:EN-US">来</span><span style="font-size:10.0pt;line-height:150%;font-family:"微软雅黑","sans-serif";
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";
mso-bidi-font-family:"Times New Roman";color:windowtext">经久不衰的经典产品。光谱仪，气相色谱仪，静电计应用中处处可见其身影。其低至</span><span style="font-size:10.0pt;line-height:150%;font-family:"Times New Roman","serif";
mso-fareast-font-family:微软雅黑;color:windowtext">100-250fA</span><span style="font-size:10.0pt;line-height:150%;font-family:"微软雅黑","sans-serif";
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";
mso-bidi-font-family:"Times New Roman";color:windowtext">的输入偏置电流（图</span><span style="font-size:10.0pt;line-height:150%;font-family:"Times New Roman","serif";
mso-fareast-font-family:微软雅黑;color:windowtext">2</span><span style="font-size:
10.0pt;line-height:150%;font-family:"微软雅黑","sans-serif";mso-ascii-font-family:
"Times New Roman";mso-hansi-font-family:"Times New Roman";mso-bidi-font-family:
"Times New Roman";color:windowtext">）以及优异的温漂曲线以今天的眼光来看，都是</span><span style="font-size:10.0pt;line-height:150%;font-family:"微软雅黑","sans-serif";
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";
mso-bidi-font-family:"Times New Roman";color:windowtext;mso-ansi-language:EN-US">几无对手</span><span style="font-size:10.0pt;line-height:150%;font-family:"微软雅黑","sans-serif";
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";
mso-bidi-font-family:"Times New Roman";color:windowtext">。</span><span style="font-size:10.0pt;line-height:150%;font-family:"Times New Roman","serif";
mso-fareast-font-family:微软雅黑;color:windowtext"><o:p></o:p></span></p>
<img alt="图2 摘自AD549数据手册" data-align="center" data-entity-type="file" data-entity-uuid="c89f55ca-22c7-40c3-b397-d975eaf54e0c" src="http://new.eetrend.com/files/2020-11/wen_zhang_/100058313-111068-2.png&…; />
<p align="center" class="MsoCaption" style="text-align:center;line-height:150%"><span style="font-family:"微软雅黑","sans-serif";mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman";mso-bidi-font-family:"Times New Roman";
color:windowtext">图</span><span style="font-family:"Times New Roman","serif";
mso-fareast-font-family:微软雅黑;color:windowtext">2 </span><span style="font-family:
"微软雅黑","sans-serif";mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman";mso-bidi-font-family:"Times New Roman";color:windowtext">摘自</span><span style="font-family:"Times New Roman","serif";mso-fareast-font-family:微软雅黑;
color:windowtext">AD549</span><span style="font-family:"微软雅黑","sans-serif";
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";
mso-bidi-font-family:"Times New Roman";color:windowtext">数据手册</span><span style="font-family:"Times New Roman","serif";mso-fareast-font-family:微软雅黑;
color:windowtext"><o:p></o:p></span></p>
![http://new.eetrend.com/files/2020-11/wen_zhang_/100058313-111068-2.png&…](http://new.eetrend.com/files/2020-11/wen_zhang_/100058313-111068-2.png"){kind=link}
<p class="MsoNormal" style="text-indent:20.0pt;mso-char-indent-count:2.0;
line-height:150%"><span style="font-size:10.0pt;line-height:150%;font-family:
"微软雅黑","sans-serif";mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman";mso-bidi-font-family:"Times New Roman";color:windowtext;
mso-ansi-language:EN-IE">以超越致敬经典，这成为了</span><span lang="EN-IE" style="font-size:
10.0pt;line-height:150%;font-family:"Times New Roman","serif";mso-fareast-font-family:
微软雅黑;color:windowtext;mso-ansi-language:EN-IE">ADI</span><span style="font-size:10.0pt;line-height:150%;font-family:"微软雅黑","sans-serif";
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";
mso-bidi-font-family:"Times New Roman";color:windowtext;mso-ansi-language:EN-IE">人对技术的一种追求。</span><span lang="EN-IE" style="font-size:10.0pt;line-height:150%;font-family:"Times New Roman","serif";
mso-fareast-font-family:微软雅黑;color:windowtext;mso-ansi-language:EN-IE">201</span><span style="font-size:10.0pt;line-height:150%;font-family:"Times New Roman","serif";
mso-fareast-font-family:微软雅黑;color:windowtext">5</span><span style="font-size:
10.0pt;line-height:150%;font-family:"微软雅黑","sans-serif";mso-ascii-font-family:
"Times New Roman";mso-hansi-font-family:"Times New Roman";mso-bidi-font-family:
"Times New Roman";color:windowtext">年底，</span><span style="font-size:10.0pt;
line-height:150%;font-family:"Times New Roman","serif";mso-fareast-font-family:
微软雅黑;color:windowtext">ADA4530-1</span><span style="font-size:10.0pt;
line-height:150%;font-family:"微软雅黑","sans-serif";mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman";mso-bidi-font-family:"Times New Roman";
color:windowtext">正式亮相。以</span><span style="font-size:10.0pt;line-height:150%;
font-family:"Times New Roman","serif";mso-fareast-font-family:微软雅黑;color:windowtext">CMOS</span><span style="font-size:10.0pt;line-height:150%;font-family:"微软雅黑","sans-serif";
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";
mso-bidi-font-family:"Times New Roman";color:windowtext">的工艺实现了</span><span style="font-size:10.0pt;line-height:150%;font-family:"Times New Roman","serif";
mso-fareast-font-family:微软雅黑;color:windowtext">JFET</span><span style="font-size:10.0pt;line-height:150%;font-family:"微软雅黑","sans-serif";
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";
mso-bidi-font-family:"Times New Roman";color:windowtext">的性能挑战。其失调电压最大</span><span style="font-size:10.0pt;line-height:150%;font-family:"Times New Roman","serif";
mso-fareast-font-family:微软雅黑;color:windowtext">50μV</span><span style="font-size:10.0pt;line-height:150%;font-family:"微软雅黑","sans-serif";
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";
mso-bidi-font-family:"Times New Roman";color:windowtext">，偏置电流在</span><span style="font-size:10.0pt;line-height:150%;font-family:"Times New Roman","serif";
mso-fareast-font-family:微软雅黑;color:windowtext">−40°C </span><span style="font-size:10.0pt;line-height:150%;font-family:"微软雅黑","sans-serif";
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";
mso-bidi-font-family:"Times New Roman";color:windowtext">至</span><span style="font-size:10.0pt;line-height:150%;font-family:"Times New Roman","serif";
mso-fareast-font-family:微软雅黑;color:windowtext">+</span><span lang="EN-IE" style="font-size:10.0pt;line-height:150%;font-family:"Times New Roman","serif";
mso-fareast-font-family:微软雅黑;color:windowtext;mso-ansi-language:EN-IE">85</span><span lang="EN-IE" style="font-size:10.0pt;line-height:150%;font-family:Symbol;
mso-ascii-font-family:"Times New Roman";mso-fareast-font-family:微软雅黑;
mso-hansi-font-family:"Times New Roman";mso-bidi-font-family:"Times New Roman";
color:windowtext;mso-ansi-language:EN-IE;mso-char-type:symbol;mso-symbol-font-family:
Symbol"><span style="mso-char-type:symbol;mso-symbol-font-family:Symbol">°</span></span><span lang="EN-IE" style="font-size:10.0pt;line-height:150%;font-family:"Times New Roman","serif";
mso-fareast-font-family:微软雅黑;color:windowtext;mso-ansi-language:EN-IE">C</span><span style="font-size:10.0pt;line-height:150%;font-family:"微软雅黑","sans-serif";
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";
mso-bidi-font-family:"Times New Roman";color:windowtext;mso-ansi-language:EN-IE">范围内均不超过</span><span lang="EN-IE" style="font-size:10.0pt;line-height:150%;font-family:"Times New Roman","serif";
mso-fareast-font-family:微软雅黑;color:windowtext;mso-ansi-language:EN-IE">20fA ——</span><span lang="EN-US" style="font-size:10.0pt;line-height:150%;font-family:"Times New Roman","serif";
mso-fareast-font-family:宋体;color:windowtext;background:white;mso-ansi-language:
EN-US"> </span><span style="font-size:10.0pt;line-height:150%;font-family:
"微软雅黑","sans-serif";mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman";mso-bidi-font-family:"Times New Roman";color:windowtext;
background:white">高温性能</span><span style="font-size:10.0pt;line-height:150%;
font-family:"微软雅黑","sans-serif";mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman";mso-bidi-font-family:"Times New Roman";
color:windowtext;mso-ansi-language:EN-IE">比</span><span lang="EN-IE" style="font-size:10.0pt;line-height:150%;font-family:"Times New Roman","serif";
mso-fareast-font-family:微软雅黑;color:windowtext;mso-ansi-language:EN-IE">AD549</span><span style="font-size:10.0pt;line-height:150%;font-family:"微软雅黑","sans-serif";
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";
mso-bidi-font-family:"Times New Roman";color:windowtext;mso-ansi-language:EN-IE">提升了几百倍<a name="_GoBack"></a>。</span><span style="font-size:10.0pt;line-height:150%;
font-family:"Times New Roman","serif";mso-fareast-font-family:微软雅黑;color:windowtext"><o:p></o:p></span></p>
<img alt="图 3 摘自ADA4530-1数据手册" data-align="center" data-entity-type="file" data-entity-uuid="6059d8c6-1cfd-4aad-b4e9-d5ca8f2e3bcc" src="http://new.eetrend.com/files/2020-11/wen_zhang_/100058313-111069-3.png&…; />
<p align="center" class="MsoCaption" style="text-align:center;line-height:150%"><span style="font-family:"微软雅黑","sans-serif";mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman";mso-bidi-font-family:"Times New Roman";
color:windowtext">图</span><span style="font-family:"Times New Roman","serif";
mso-fareast-font-family:微软雅黑;color:windowtext"> 3<span style="mso-spacerun:yes"> </span></span><span style="font-family:"微软雅黑","sans-serif";
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";
mso-bidi-font-family:"Times New Roman";color:windowtext">摘自</span><span style="font-family:"Times New Roman","serif";mso-fareast-font-family:微软雅黑;
color:windowtext">ADA4530-1</span><span style="font-family:"微软雅黑","sans-serif";
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";
mso-bidi-font-family:"Times New Roman";color:windowtext">数据手册</span><span style="font-family:"Times New Roman","serif";mso-fareast-font-family:微软雅黑;
color:windowtext"><o:p></o:p></span></p>
<img alt="图4 ADA4530-1与AD549对比表" data-align="center" data-entity-type="file" data-entity-uuid="6b601321-89c2-4a88-8cd0-f9a020d89e4f" src="http://new.eetrend.com/files/2020-11/wen_zhang_/100058313-111070-4.png&…; />
<p align="center" class="MsoCaption" style="text-align:center;line-height:150%"><span style="font-family:"Times New Roman","serif";mso-fareast-font-family:微软雅黑;
color:windowtext"><span style="mso-spacerun:yes"> </span></span><span style="font-family:"微软雅黑","sans-serif";mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman";mso-bidi-font-family:"Times New Roman";
color:windowtext">图</span><span style="font-family:"Times New Roman","serif";
mso-fareast-font-family:微软雅黑;color:windowtext">4 ADA4530-1</span><span style="font-family:"微软雅黑","sans-serif";mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman";mso-bidi-font-family:"Times New Roman";
color:windowtext">与</span><span style="font-family:"Times New Roman","serif";
mso-fareast-font-family:微软雅黑;color:windowtext">AD549</span><span style="font-family:"微软雅黑","sans-serif";mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman";mso-bidi-font-family:"Times New Roman";
color:windowtext">对比表</span><span style="font-family:"Times New Roman","serif";
mso-fareast-font-family:微软雅黑;color:windowtext"><o:p></o:p></span></p>
![http://new.eetrend.com/files/2020-11/wen_zhang_/100058313-111069-3.png&…](http://new.eetrend.com/files/2020-11/wen_zhang_/100058313-111069-3.png"){kind=link}
![http://new.eetrend.com/files/2020-11/wen_zhang_/100058313-111070-4.png&…](http://new.eetrend.com/files/2020-11/wen_zhang_/100058313-111070-4.png"){kind=link}
<p class="MsoNormal" style="text-indent:20.0pt;mso-char-indent-count:2.0;
line-height:150%"><span style="font-size:10.0pt;line-height:150%;font-family:
"微软雅黑","sans-serif";mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman";mso-bidi-font-family:"Times New Roman";color:windowtext">有了优异的器件，如何将其性能发挥出来，从系统设计的角度去满足皮安级电流测量的性能要求？针对中国工程师的需求，</span><span style="font-size:10.0pt;line-height:150%;font-family:"微软雅黑","sans-serif";
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";
mso-bidi-font-family:"Times New Roman";color:windowtext;mso-ansi-language:EN-US">与</span><span lang="EN-US" style="font-size:10.0pt;line-height:150%;font-family:"Times New Roman","serif";
mso-fareast-font-family:微软雅黑;color:windowtext;mso-ansi-language:EN-US">ADI</span><span style="font-size:10.0pt;line-height:150%;font-family:"微软雅黑","sans-serif";
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";
mso-bidi-font-family:"Times New Roman";color:windowtext;mso-ansi-language:EN-US">合作三十多年的</span><span style="font-size:10.0pt;line-height:150%;font-family:"微软雅黑","sans-serif";
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";
mso-bidi-font-family:"Times New Roman";color:windowtext">技术分销商</span><span style="font-size:10.0pt;line-height:150%;font-family:"Times New Roman","serif";
mso-fareast-font-family:微软雅黑;color:windowtext">Ex</span><span style="font-size:
10.0pt;mso-bidi-font-size:11.0pt;line-height:150%;font-family:"Times New Roman","serif";
mso-fareast-font-family:微软雅黑;color:windowtext">celpoint</span><span style="font-size:10.0pt;line-height:150%;font-family:"微软雅黑","sans-serif";
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";
mso-bidi-font-family:"Times New Roman";color:windowtext">世健挑战难关，</span><span style="font-size:10.0pt;line-height:150%;font-family:"微软雅黑","sans-serif";
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";
mso-bidi-font-family:"Times New Roman";color:windowtext;mso-ansi-language:EN-US">它的</span><span style="font-size:10.0pt;line-height:150%;font-family:"微软雅黑","sans-serif";
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";
mso-bidi-font-family:"Times New Roman";color:windowtext">上海技术团队在原有设计的皮安级电流计量评估套件的基础上做了大幅度的改进，于</span><span style="font-size:10.0pt;line-height:150%;font-family:"Times New Roman","serif";
mso-fareast-font-family:微软雅黑;color:windowtext">2020</span><span style="font-size:10.0pt;line-height:150%;font-family:"微软雅黑","sans-serif";
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";
mso-bidi-font-family:"Times New Roman";color:windowtext">年</span><span style="font-size:10.0pt;line-height:150%;font-family:"Times New Roman","serif";
mso-fareast-font-family:微软雅黑;color:windowtext">10</span><span style="font-size:
10.0pt;line-height:150%;font-family:"微软雅黑","sans-serif";mso-ascii-font-family:
"Times New Roman";mso-hansi-font-family:"Times New Roman";mso-bidi-font-family:
"Times New Roman";color:windowtext">月正式发布了可商业化的超高精度皮安计模块</span><span style="font-size:10.0pt;line-height:150%;font-family:"Times New Roman","serif";
mso-fareast-font-family:微软雅黑;color:windowtext"> EPSH-PAM2.0 </span><span style="font-size:10.0pt;line-height:150%;font-family:"微软雅黑","sans-serif";
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";
mso-bidi-font-family:"Times New Roman";color:windowtext">（以下简称</span><span style="font-size:10.0pt;line-height:150%;font-family:"Times New Roman","serif";
mso-fareast-font-family:微软雅黑;color:windowtext">PAM2.0</span><span style="font-size:10.0pt;line-height:150%;font-family:"微软雅黑","sans-serif";
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";
mso-bidi-font-family:"Times New Roman";color:windowtext">模块）。</span><span style="font-size:10.0pt;line-height:150%;font-family:"Times New Roman","serif";
mso-fareast-font-family:微软雅黑;color:windowtext"><o:p></o:p></span></p>
<p class="MsoNormal" style="text-indent:20.0pt;mso-char-indent-count:2.0;
line-height:150%"><span style="font-size:10.0pt;line-height:150%;font-family:
"微软雅黑","sans-serif";mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman";mso-bidi-font-family:"Times New Roman";color:windowtext">世健技术支持部的高级副总裁戈一新</span><span style="font-size:10.0pt;line-height:150%;font-family:"微软雅黑","sans-serif";
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";
mso-bidi-font-family:"Times New Roman";color:windowtext;mso-ansi-language:EN-US">向我们介绍道：</span><span style="font-size:10.0pt;line-height:150%;font-family:"Times New Roman","serif";
mso-fareast-font-family:微软雅黑;color:windowtext">“</span><span style="font-size:
10.0pt;line-height:150%;font-family:"微软雅黑","sans-serif";mso-ascii-font-family:
"Times New Roman";mso-hansi-font-family:"Times New Roman";mso-bidi-font-family:
"Times New Roman";color:windowtext">精心的模块设计，严格的工艺制作，保证了</span><span style="font-size:10.0pt;line-height:150%;font-family:"Times New Roman","serif";
mso-fareast-font-family:微软雅黑;color:windowtext">PAM2.0</span><span style="font-size:10.0pt;line-height:150%;font-family:"微软雅黑","sans-serif";
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";
mso-bidi-font-family:"Times New Roman";color:windowtext">模块的性能与质量。</span><span style="font-size:10.0pt;line-height:150%;font-family:"Times New Roman","serif";
mso-fareast-font-family:微软雅黑;color:windowtext">50µV</span><span style="font-size:10.0pt;line-height:150%;font-family:"微软雅黑","sans-serif";
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";
mso-bidi-font-family:"Times New Roman";color:windowtext">（相当于</span><span style="font-size:10.0pt;line-height:150%;font-family:"Times New Roman","serif";
mso-fareast-font-family:微软雅黑;color:windowtext">5fA</span><span style="font-size:10.0pt;line-height:150%;font-family:"微软雅黑","sans-serif";
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";
mso-bidi-font-family:"Times New Roman";color:windowtext">）的</span><span style="font-size:10.0pt;line-height:150%;font-family:"Times New Roman","serif";
mso-fareast-font-family:微软雅黑;color:windowtext">RMS</span><span style="font-size:10.0pt;line-height:150%;font-family:"微软雅黑","sans-serif";
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";
mso-bidi-font-family:"Times New Roman";color:windowtext">底噪，能满足绝大部分微弱电流信号测量用户的需求。</span><span style="font-size:10.0pt;line-height:150%;font-family:"Times New Roman","serif";
mso-fareast-font-family:微软雅黑;color:windowtext">”<o:p></o:p></span></p>
<img alt="图5 外观与软件界面" data-align="center" data-entity-type="file" data-entity-uuid="bbf6520e-f047-44fb-935a-d7430dccde2f" src="http://new.eetrend.com/files/2020-11/wen_zhang_/100058313-111071-5.png&…; />
<p align="center" class="MsoCaption" style="text-align:center;line-height:150%"><span style="font-family:"微软雅黑","sans-serif";mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman";mso-bidi-font-family:"Times New Roman";
color:windowtext">图</span><span lang="EN-US" style="font-family:"Times New Roman","serif";
mso-fareast-font-family:微软雅黑;color:windowtext;mso-ansi-language:EN-US">5</span><span lang="EN-US" style="font-family:"Times New Roman","serif";mso-fareast-font-family:
微软雅黑;color:windowtext"> </span><span style="font-family:"微软雅黑","sans-serif";
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";
mso-bidi-font-family:"Times New Roman";color:windowtext">外观与软件界面</span><span style="font-family:"Times New Roman","serif";mso-fareast-font-family:微软雅黑;
color:windowtext"><o:p></o:p></span></p>
![http://new.eetrend.com/files/2020-11/wen_zhang_/100058313-111071-5.png&…](http://new.eetrend.com/files/2020-11/wen_zhang_/100058313-111071-5.png"){kind=link}
<p class="MsoNormal" style="text-indent:20.0pt;mso-char-indent-count:2.0;
line-height:150%"><span style="font-size:10.0pt;line-height:150%;font-family:
"Times New Roman","serif";mso-fareast-font-family:微软雅黑;color:windowtext">PAM2.0</span><span style="font-size:10.0pt;line-height:150%;font-family:"微软雅黑","sans-serif";
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";
mso-bidi-font-family:"Times New Roman";color:windowtext">模块采用</span><span style="font-size:10.0pt;line-height:150%;font-family:"Times New Roman","serif";
mso-fareast-font-family:微软雅黑;color:windowtext">4</span><span style="font-size:
10.0pt;line-height:150%;font-family:"微软雅黑","sans-serif";mso-ascii-font-family:
"Times New Roman";mso-hansi-font-family:"Times New Roman";mso-bidi-font-family:
"Times New Roman";color:windowtext">层板布局及</span><span style="font-size:10.0pt;
line-height:150%;font-family:"Times New Roman","serif";mso-fareast-font-family:
微软雅黑;color:windowtext">FR-4 PCB</span><span style="font-size:10.0pt;line-height:
150%;font-family:"微软雅黑","sans-serif";mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman";mso-bidi-font-family:"Times New Roman";
color:windowtext">板材。工程师巧妙的采用了</span><span style="font-size:10.0pt;line-height:
150%;font-family:"Times New Roman","serif";mso-fareast-font-family:微软雅黑;
color:windowtext">AD549</span><span style="font-size:10.0pt;line-height:150%;
font-family:"微软雅黑","sans-serif";mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman";mso-bidi-font-family:"Times New Roman";
color:windowtext">国内经典的反相端悬空柱接方式，使得</span><span style="font-size:10.0pt;
line-height:150%;font-family:"Times New Roman","serif";mso-fareast-font-family:
微软雅黑;color:windowtext">FR-4</span><span style="font-size:10.0pt;line-height:
150%;font-family:"微软雅黑","sans-serif";mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman";mso-bidi-font-family:"Times New Roman";
color:windowtext">板材的效果依旧可以媲美</span><span style="font-size:10.0pt;line-height:
150%;font-family:"Times New Roman","serif";mso-fareast-font-family:微软雅黑;
color:windowtext">ROGERS4350</span><span style="font-size:10.0pt;line-height:
150%;font-family:"微软雅黑","sans-serif";mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman";mso-bidi-font-family:"Times New Roman";
color:windowtext">板材，而成本大大降低。</span><span style="font-size:10.0pt;line-height:
150%;font-family:"Times New Roman","serif";mso-fareast-font-family:微软雅黑;
color:windowtext">PAM2.0</span><span style="font-size:10.0pt;line-height:150%;
font-family:"微软雅黑","sans-serif";mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman";mso-bidi-font-family:"Times New Roman";
color:windowtext">模块的输入端子为</span><span style="font-size:10.0pt;line-height:
150%;font-family:"Times New Roman","serif";mso-fareast-font-family:微软雅黑;
color:windowtext">SMA</span><span style="font-size:10.0pt;line-height:150%;
font-family:"微软雅黑","sans-serif";mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman";mso-bidi-font-family:"Times New Roman";
color:windowtext">接口。模块套件包含了一根</span><span style="font-size:10.0pt;line-height:
150%;font-family:"Times New Roman","serif";mso-fareast-font-family:微软雅黑;
color:windowtext">BNC</span><span style="font-size:10.0pt;line-height:150%;
font-family:"微软雅黑","sans-serif";mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman";mso-bidi-font-family:"Times New Roman";
color:windowtext">转</span><span style="font-size:10.0pt;line-height:150%;
font-family:"Times New Roman","serif";mso-fareast-font-family:微软雅黑;color:windowtext">SMA</span><span style="font-size:10.0pt;line-height:150%;font-family:"微软雅黑","sans-serif";
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";
mso-bidi-font-family:"Times New Roman";color:windowtext">高性能屏蔽线，便于与各种电流输入源对接。模块采用了双金属屏蔽罩降低各种噪声和干扰。在设计和生产过程中，工程师对不同供应商的</span><span style="font-size:10.0pt;line-height:150%;font-family:"Times New Roman","serif";
mso-fareast-font-family:微软雅黑;color:windowtext">10GΩ</span><span style="font-size:10.0pt;line-height:150%;font-family:"微软雅黑","sans-serif";
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";
mso-bidi-font-family:"Times New Roman";color:windowtext">电阻进行了全方位的评估测试，从中挑选出性能优异的电阻确保模块的性能。</span><span style="font-size:10.0pt;line-height:150%;font-family:"Times New Roman","serif";
mso-fareast-font-family:微软雅黑;color:windowtext">PAM2.0</span><span style="font-size:10.0pt;line-height:150%;font-family:"微软雅黑","sans-serif";
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";
mso-bidi-font-family:"Times New Roman";color:windowtext">模块简化了电源设计，使用</span><span style="font-size:10.0pt;line-height:150%;font-family:"Times New Roman","serif";
mso-fareast-font-family:微软雅黑;color:windowtext">LTC3260 </span><span style="font-size:10.0pt;line-height:150%;font-family:"微软雅黑","sans-serif";
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";
mso-bidi-font-family:"Times New Roman";color:windowtext">双路低噪声</span><span style="font-size:10.0pt;line-height:150%;font-family:"Times New Roman","serif";
mso-fareast-font-family:微软雅黑;color:windowtext">LDO</span><span style="font-size:10.0pt;line-height:150%;font-family:"微软雅黑","sans-serif";
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";
mso-bidi-font-family:"Times New Roman";color:windowtext">为</span><span style="font-size:10.0pt;line-height:150%;font-family:"Times New Roman","serif";
mso-fareast-font-family:微软雅黑;color:windowtext">ADA4530-1</span><span style="font-size:10.0pt;line-height:150%;font-family:"微软雅黑","sans-serif";
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";
mso-bidi-font-family:"Times New Roman";color:windowtext">供电。在次级信号的放大选择上，客户既可以使用</span><span style="font-size:10.0pt;line-height:150%;font-family:"Times New Roman","serif";
mso-fareast-font-family:微软雅黑;color:windowtext">ADA4522-1</span><span style="font-size:10.0pt;line-height:150%;font-family:"微软雅黑","sans-serif";
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";
mso-bidi-font-family:"Times New Roman";color:windowtext">与</span><span style="font-size:10.0pt;line-height:150%;font-family:"Times New Roman","serif";
mso-fareast-font-family:微软雅黑;color:windowtext">ADG1608</span><span style="font-size:10.0pt;line-height:150%;font-family:"微软雅黑","sans-serif";
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";
mso-bidi-font-family:"Times New Roman";color:windowtext">的组合进行硬件电路放大，亦可使用</span><span style="font-size:10.0pt;line-height:150%;font-family:"Times New Roman","serif";
mso-fareast-font-family:宋体;color:windowtext;background:white">AD7124-4</span><span style="font-size:10.0pt;line-height:150%;font-family:"微软雅黑","sans-serif";
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";
mso-bidi-font-family:"Times New Roman";color:windowtext">片内</span><span style="font-size:10.0pt;line-height:150%;font-family:"Times New Roman","serif";
mso-fareast-font-family:微软雅黑;color:windowtext">PGA</span><span style="font-size:10.0pt;line-height:150%;font-family:"微软雅黑","sans-serif";
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";
mso-bidi-font-family:"Times New Roman";color:windowtext">软件程控放大，从而灵活的比较两种方式的性能和成本。</span><span style="font-size:10.0pt;line-height:150%;font-family:"Times New Roman","serif";
mso-fareast-font-family:微软雅黑;color:windowtext">ADC</span><span style="font-size:10.0pt;line-height:150%;font-family:"微软雅黑","sans-serif";
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";
mso-bidi-font-family:"Times New Roman";color:windowtext">选择了最新的</span><span style="font-size:10.0pt;line-height:150%;font-family:"Times New Roman","serif";
mso-fareast-font-family:微软雅黑;color:windowtext">AD7124-4, </span><span style="font-size:10.0pt;line-height:150%;font-family:"微软雅黑","sans-serif";
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";
mso-bidi-font-family:"Times New Roman";color:windowtext">它具有</span><span style="font-size:10.0pt;line-height:150%;font-family:"Times New Roman","serif";
mso-fareast-font-family:微软雅黑;color:windowtext">24</span><span style="font-size:
10.0pt;line-height:150%;font-family:"微软雅黑","sans-serif";mso-ascii-font-family:
"Times New Roman";mso-hansi-font-family:"Times New Roman";mso-bidi-font-family:
"Times New Roman";color:windowtext">位</span><span style="font-size:10.0pt;
line-height:150%;font-family:"Times New Roman","serif";mso-fareast-font-family:
微软雅黑;color:windowtext">19.2KSPS</span><span style="font-size:10.0pt;line-height:
150%;font-family:"微软雅黑","sans-serif";mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman";mso-bidi-font-family:"Times New Roman";
color:windowtext">最高输出数据率，并提供三种功耗模式（低</span><span style="font-size:10.0pt;
line-height:150%;font-family:"Times New Roman","serif";mso-fareast-font-family:
微软雅黑;color:windowtext">/</span><span style="font-size:10.0pt;line-height:150%;
font-family:"微软雅黑","sans-serif";mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman";mso-bidi-font-family:"Times New Roman";
color:windowtext">中</span><span style="font-size:10.0pt;line-height:150%;
font-family:"Times New Roman","serif";mso-fareast-font-family:微软雅黑;color:windowtext">/</span><span style="font-size:10.0pt;line-height:150%;font-family:"微软雅黑","sans-serif";
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";
mso-bidi-font-family:"Times New Roman";color:windowtext">全性能），从而让客户在设计便携式测量应用时无需更改硬件。若客户需要更高的采样率</span><span style="font-size:10.0pt;line-height:150%;font-family:"Times New Roman","serif";
mso-fareast-font-family:微软雅黑;color:windowtext">ADC</span><span style="font-size:10.0pt;line-height:150%;font-family:"微软雅黑","sans-serif";
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";
mso-bidi-font-family:"Times New Roman";color:windowtext">，亦可从</span><span style="font-size:10.0pt;line-height:150%;font-family:"Times New Roman","serif";
mso-fareast-font-family:微软雅黑;color:windowtext">TP2</span><span style="font-size:10.0pt;line-height:150%;font-family:"微软雅黑","sans-serif";
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";
mso-bidi-font-family:"Times New Roman";color:windowtext">端与各种</span><span style="font-size:10.0pt;line-height:150%;font-family:"Times New Roman","serif";
mso-fareast-font-family:微软雅黑;color:windowtext">ADC</span><span style="font-size:10.0pt;line-height:150%;font-family:"微软雅黑","sans-serif";
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";
mso-bidi-font-family:"Times New Roman";color:windowtext">评估板进行对接。精心设计的</span><span style="font-size:10.0pt;line-height:150%;font-family:"Times New Roman","serif";
mso-fareast-font-family:微软雅黑;color:windowtext">LABVIEW GUI</span><span style="font-size:10.0pt;line-height:150%;font-family:"微软雅黑","sans-serif";
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";
mso-bidi-font-family:"Times New Roman";color:windowtext">提供了模块配置、实时波形显示、直方图和统计分析、测试数据导出成</span><span style="font-size:10.0pt;line-height:150%;font-family:"Times New Roman","serif";
mso-fareast-font-family:微软雅黑;color:windowtext">Excel</span><span style="font-size:10.0pt;line-height:150%;font-family:"微软雅黑","sans-serif";
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";
mso-bidi-font-family:"Times New Roman";color:windowtext">文件等功能。</span><span style="font-size:10.0pt;line-height:150%;font-family:"Times New Roman","serif";
mso-fareast-font-family:微软雅黑;color:windowtext"><o:p></o:p></span></p>
<img alt="图 6 系统框图" data-align="center" data-entity-type="file" data-entity-uuid="f0a27437-009f-455f-9ba3-1fd5d0ad5f47" src="http://new.eetrend.com/files/2020-11/wen_zhang_/100058313-111072-6.png&…; />
<p align="center" class="MsoCaption" style="text-align:center;line-height:150%"><span style="font-family:"微软雅黑","sans-serif";mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman";mso-bidi-font-family:"Times New Roman";
color:windowtext">图</span><span style="font-family:"Times New Roman","serif";
mso-fareast-font-family:微软雅黑;color:windowtext"> </span><span lang="EN-US" style="font-family:"Times New Roman","serif";mso-fareast-font-family:微软雅黑;
color:windowtext;mso-ansi-language:EN-US">6</span><span lang="EN-US" style="font-family:"Times New Roman","serif";mso-fareast-font-family:微软雅黑;
color:windowtext"> </span><span style="font-family:"微软雅黑","sans-serif";
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";
mso-bidi-font-family:"Times New Roman";color:windowtext">系统框图</span><span style="font-family:"Times New Roman","serif";mso-fareast-font-family:微软雅黑;
color:windowtext"><o:p></o:p></span></p>
![http://new.eetrend.com/files/2020-11/wen_zhang_/100058313-111072-6.png&…](http://new.eetrend.com/files/2020-11/wen_zhang_/100058313-111072-6.png"){kind=link}
<p class="MsoNormal" style="text-indent:20.0pt;mso-char-indent-count:2.0;
line-height:150%"><span style="font-size:10.0pt;line-height:150%;font-family:
"微软雅黑","sans-serif";mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman";mso-bidi-font-family:"Times New Roman";color:windowtext">匠心设计的收获是显而易见的：使用</span><span style="font-size:10.0pt;line-height:150%;font-family:"Times New Roman","serif";
mso-fareast-font-family:微软雅黑;color:windowtext">Keithley 6220</span><span style="font-size:10.0pt;line-height:150%;font-family:"微软雅黑","sans-serif";
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";
mso-bidi-font-family:"Times New Roman";color:windowtext">源表进行测试，</span><span style="font-size:10.0pt;line-height:150%;font-family:"Times New Roman","serif";
mso-fareast-font-family:微软雅黑;color:windowtext">PAM2.0</span><span style="font-size:10.0pt;line-height:150%;font-family:"微软雅黑","sans-serif";
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";
mso-bidi-font-family:"Times New Roman";color:windowtext">模块在</span><span style="font-size:10.0pt;line-height:150%;font-family:"Times New Roman","serif";
mso-fareast-font-family:微软雅黑;color:windowtext">0-20pA</span><span style="font-size:10.0pt;line-height:150%;font-family:"微软雅黑","sans-serif";
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";
mso-bidi-font-family:"Times New Roman";color:windowtext">的</span><span style="font-size:10.0pt;line-height:150%;font-family:"Times New Roman","serif";
mso-fareast-font-family:微软雅黑;color:windowtext">I-V</span><span style="font-size:10.0pt;line-height:150%;font-family:"微软雅黑","sans-serif";
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";
mso-bidi-font-family:"Times New Roman";color:windowtext">曲线测试中，线性度达到了</span><span style="font-size:10.0pt;line-height:150%;font-family:"Times New Roman","serif";
mso-fareast-font-family:微软雅黑;color:windowtext">0.9999x</span><span style="font-size:10.0pt;line-height:150%;font-family:"微软雅黑","sans-serif";
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";
mso-bidi-font-family:"Times New Roman";color:windowtext">；在</span><span style="font-size:10.0pt;line-height:150%;font-family:"Times New Roman","serif";
mso-fareast-font-family:微软雅黑;color:windowtext">0-100pA</span><span style="font-size:10.0pt;line-height:150%;font-family:"微软雅黑","sans-serif";
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";
mso-bidi-font-family:"Times New Roman";color:windowtext">的测试中，线性度达到了</span><span style="font-size:10.0pt;line-height:150%;font-family:"Times New Roman","serif";
mso-fareast-font-family:微软雅黑;color:windowtext">0.999999x</span><span style="font-size:10.0pt;line-height:150%;font-family:"微软雅黑","sans-serif";
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";
mso-bidi-font-family:"Times New Roman";color:windowtext">。</span><span style="font-size:10.0pt;line-height:150%;font-family:"Times New Roman","serif";
mso-fareast-font-family:微软雅黑;color:windowtext">PAM2.0</span><span style="font-size:10.0pt;line-height:150%;font-family:"微软雅黑","sans-serif";
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";
mso-bidi-font-family:"Times New Roman";color:windowtext">每款模块均进行出厂线性度评估并配发</span><span style="font-size:10.0pt;line-height:150%;font-family:"Times New Roman","serif";
mso-fareast-font-family:微软雅黑;color:windowtext">85</span><span style="font-size:
10.0pt;line-height:150%;font-family:"微软雅黑","sans-serif";mso-ascii-font-family:
"Times New Roman";mso-hansi-font-family:"Times New Roman";mso-bidi-font-family:
"Times New Roman";color:windowtext">点测试报告。</span><span style="font-size:10.0pt;
line-height:150%;font-family:"Times New Roman","serif";mso-fareast-font-family:
微软雅黑;color:windowtext"><o:p></o:p></span></p>
<img alt="图7 0-100pA 21点I-V线性度测试图" data-align="center" data-entity-type="file" data-entity-uuid="d53984f6-5a47-466d-b3e4-6334a060ace3" src="http://new.eetrend.com/files/2020-11/wen_zhang_/100058313-111073-7.png&…; />
<p align="center" class="MsoCaption" style="text-align:center;line-height:150%"><span style="font-family:"微软雅黑","sans-serif";mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman";mso-bidi-font-family:"Times New Roman";
color:windowtext">图</span><span lang="EN-US" style="font-family:"Times New Roman","serif";
mso-fareast-font-family:微软雅黑;color:windowtext;mso-ansi-language:EN-US">7</span><span style="font-family:"Times New Roman","serif";mso-fareast-font-family:微软雅黑;
color:windowtext"><span style="mso-spacerun:yes"> </span>0-100pA 21</span><span style="font-family:"微软雅黑","sans-serif";mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman";mso-bidi-font-family:"Times New Roman";
color:windowtext">点</span><span style="font-family:"Times New Roman","serif";
mso-fareast-font-family:微软雅黑;color:windowtext">I-V</span><span style="font-family:"微软雅黑","sans-serif";mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman";mso-bidi-font-family:"Times New Roman";
color:windowtext">线性度测试图</span><span style="font-family:"Times New Roman","serif";
mso-fareast-font-family:微软雅黑;color:windowtext"><o:p></o:p></span></p>
![http://new.eetrend.com/files/2020-11/wen_zhang_/100058313-111073-7.png&…](http://new.eetrend.com/files/2020-11/wen_zhang_/100058313-111073-7.png"){kind=link}
<p class="MsoNormal" style="text-indent:20.0pt;mso-char-indent-count:2.0;
line-height:150%"><span style="font-size:10.0pt;line-height:150%;font-family:
"微软雅黑","sans-serif";mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman";mso-bidi-font-family:"Times New Roman";color:windowtext;
mso-ansi-language:EN-US">这款</span><span style="font-size:10.0pt;line-height:
150%;font-family:"微软雅黑","sans-serif";mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman";mso-bidi-font-family:"Times New Roman";
color:windowtext">超高精度皮安计模块旨在从系统设计角度出发，提供给客户快速设计原型，</span><span style="font-size:10.0pt;line-height:150%;font-family:"微软雅黑","sans-serif";
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";
mso-bidi-font-family:"Times New Roman";color:windowtext;mso-ansi-language:EN-US">让产品迅速推向市场。</span><span lang="EN-US" style="font-size:10.0pt;line-height:150%;font-family:"Times New Roman","serif";
mso-fareast-font-family:微软雅黑;color:windowtext;mso-ansi-language:EN-US"><o:p></o:p></span></p>
<p class="MsoNormal" style="text-indent:20.0pt;mso-char-indent-count:2.0;
line-height:150%"><span style="font-size:10.0pt;line-height:150%;font-family:
"微软雅黑","sans-serif";mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman";mso-bidi-font-family:"Times New Roman";color:windowtext;
mso-ansi-language:EN-US">据悉该模块将会在</span><span lang="EN-US" style="font-size:10.0pt;
line-height:150%;font-family:"Times New Roman","serif";mso-fareast-font-family:
微软雅黑;color:windowtext;mso-ansi-language:EN-US">11</span><span style="font-size:
10.0pt;line-height:150%;font-family:"微软雅黑","sans-serif";mso-ascii-font-family:
"Times New Roman";mso-hansi-font-family:"Times New Roman";mso-bidi-font-family:
"Times New Roman";color:windowtext;mso-ansi-language:EN-US">月</span><span lang="EN-US" style="font-size:10.0pt;line-height:150%;font-family:"Times New Roman","serif";
mso-fareast-font-family:微软雅黑;color:windowtext;mso-ansi-language:EN-US">16-18</span><span style="font-size:10.0pt;line-height:150%;font-family:"微软雅黑","sans-serif";
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";
mso-bidi-font-family:"Times New Roman";color:windowtext;mso-ansi-language:EN-US">日，于</span><span style="font-size:10.0pt;line-height:150%;font-family:"微软雅黑","sans-serif";
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";
mso-bidi-font-family:"Times New Roman";color:windowtext;background:white">上海新国际博览中心</span><span style="font-size:10.0pt;line-height:150%;font-family:"微软雅黑","sans-serif";
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";
mso-bidi-font-family:"Times New Roman";color:windowtext;mso-ansi-language:EN-US">的慕尼黑上海分析生化展上展出，并在世健网店</span><span lang="EN-US" style="font-size:10.0pt;line-height:150%;font-family:"Times New Roman","serif";
mso-fareast-font-family:微软雅黑;color:windowtext;mso-ansi-language:EN-US">(www.excelchips.cn) </span><span style="font-size:10.0pt;line-height:150%;font-family:"微软雅黑","sans-serif";
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";
mso-bidi-font-family:"Times New Roman";color:windowtext;mso-ansi-language:EN-US">出售。</span><span style="font-size:10.0pt;line-height:150%;font-family:"Times New Roman","serif";
mso-fareast-font-family:微软雅黑;color:windowtext;mso-ansi-language:EN-US"> <span lang="EN-US"><o:p></o:p></span></span></p>
<p class="MsoNormal" style="margin-bottom:7.5pt;line-height:150%"><b style="mso-bidi-font-weight:normal"><span style="font-size:10.5pt;line-height:
150%;font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman";mso-bidi-font-family:"Times New Roman";color:windowtext">关于世健</span></b><b style="mso-bidi-font-weight:normal"><span style="font-size:10.5pt;line-height:
150%;font-family:"Times New Roman","serif";mso-fareast-font-family:宋体;
color:windowtext">——</span></b><b style="mso-bidi-font-weight:normal"><span style="font-size:10.5pt;line-height:150%;font-family:宋体;mso-ascii-font-family:
"Times New Roman";mso-hansi-font-family:"Times New Roman";mso-bidi-font-family:
"Times New Roman";color:windowtext">亚太区领先的元器件授权代理商</span></b><b style="mso-bidi-font-weight:normal"><span style="font-size:10.5pt;line-height:
150%;font-family:"Times New Roman","serif";mso-fareast-font-family:宋体;
color:windowtext"><o:p></o:p></span></b></p>
<p class="MsoNormal" style="margin-bottom:7.5pt;line-height:150%"><span style="font-size:
10.5pt;line-height:150%;font-family:宋体;mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman";mso-bidi-font-family:"Times New Roman";
color:windowtext">世健是完整解决方案的供应商，为亚洲电子厂商包括原设备生产商</span><span style="font-size:
10.5pt;line-height:150%;font-family:"Times New Roman","serif";mso-fareast-font-family:
宋体;color:windowtext">(OEM)</span><span style="font-size:10.5pt;line-height:
150%;font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman";mso-bidi-font-family:"Times New Roman";color:windowtext">、原设计生产商</span><span style="font-size:10.5pt;line-height:150%;font-family:"Times New Roman","serif";
mso-fareast-font-family:宋体;color:windowtext">(ODM)</span><span style="font-size:10.5pt;line-height:150%;font-family:宋体;mso-ascii-font-family:
"Times New Roman";mso-hansi-font-family:"Times New Roman";mso-bidi-font-family:
"Times New Roman";color:windowtext">和电子制造服务提供商</span><span style="font-size:
10.5pt;line-height:150%;font-family:"Times New Roman","serif";mso-fareast-font-family:
宋体;color:windowtext">(EMS)</span><span style="font-size:10.5pt;line-height:
150%;font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman";mso-bidi-font-family:"Times New Roman";color:windowtext">提供优质的元器件、工程设计及供应链管理服务。</span></p>
<p class="MsoNormal" style="margin-bottom:7.5pt;line-height:150%"><span style="font-size:10.5pt;line-height:150%;font-family:
宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";
mso-bidi-font-family:"Times New Roman";color:windowtext">世健与供应商及电子厂商紧密协作，为新的科技与趋势作出定位，并帮助客户把这些最先进的科技揉合于他们的产品当中。集团分别在新加坡、中国及越南设有研发中心，专业的研发团队不断创造新的解决方案，帮助客户提高成本效益并缩短产品上市时间。世健研发的完整解决方案及参考设计可应用于工业、无线通信及消费电子等领域。</span></p>
<p class="MsoNormal" style="margin-bottom:7.5pt;line-height:150%"><span style="font-size:10.5pt;line-height:150%;font-family:
宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";
mso-bidi-font-family:"Times New Roman";color:windowtext">世健是新加坡的主板上市公司，总部设于新加坡，拥有约</span><span style="font-size:10.5pt;line-height:150%;font-family:"Times New Roman","serif";
mso-fareast-font-family:宋体;color:windowtext">750</span><span style="font-size:
10.5pt;line-height:150%;font-family:宋体;mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman";mso-bidi-font-family:"Times New Roman";
color:windowtext">名员工，业务范围已扩展至亚太区</span><span style="font-size:10.5pt;
line-height:150%;font-family:"Times New Roman","serif";mso-fareast-font-family:
宋体;color:windowtext">40</span><span style="font-size:10.5pt;line-height:150%;
font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman";mso-bidi-font-family:"Times New Roman";color:windowtext">多个城市和地区，遍及新加坡、马来西亚、泰国、越南、中国、印度、印度尼西亚、菲律宾及澳大利亚等十多个国家。世健集团在</span><span style="font-size:10.5pt;line-height:150%;font-family:"Times New Roman","serif";
mso-fareast-font-family:宋体;color:windowtext">2018</span><span style="font-size:
10.5pt;line-height:150%;font-family:宋体;mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman";mso-bidi-font-family:"Times New Roman";
color:windowtext">年的年营业额超过</span><span style="font-size:10.5pt;line-height:
150%;font-family:"Times New Roman","serif";mso-fareast-font-family:宋体;
color:windowtext">12</span><span style="font-size:10.5pt;line-height:150%;
font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman";mso-bidi-font-family:"Times New Roman";color:windowtext">亿</span><span style="font-size:10.5pt;line-height:150%;font-family:"Times New Roman","serif";
mso-fareast-font-family:宋体;color:windowtext">5</span><span style="font-size:
10.5pt;line-height:150%;font-family:宋体;mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman";mso-bidi-font-family:"Times New Roman";
color:windowtext">千万美元。世健于</span><span style="font-size:10.5pt;line-height:
150%;font-family:"Times New Roman","serif";mso-fareast-font-family:宋体;
color:windowtext">1993</span><span style="font-size:10.5pt;line-height:150%;
font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman";mso-bidi-font-family:"Times New Roman";color:windowtext">年开始发展中国业务，中国区总部设于香港，并拥有</span><span style="font-size:10.5pt;line-height:150%;font-family:"Times New Roman","serif";
mso-fareast-font-family:宋体;color:windowtext">11</span><span style="font-size:
10.5pt;line-height:150%;font-family:宋体;mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman";mso-bidi-font-family:"Times New Roman";
color:windowtext">个分公司及办事处、研发中心及物流中心，业务遍及中国多个城市和地区。</span><span style="font-size:10.5pt;line-height:150%;font-family:"Times New Roman","serif";
mso-fareast-font-family:微软雅黑;color:windowtext"><o:p></o:p></span></p>