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Ultra-low noise precision operational amplifier circuit
Source: InternetPublisher:抄写员 Updated: 2017/08/12
Simplified schematic:
two methods of zeroing:
![](http://www.eeworld.com.cn/circuit/upload/538a1bc8a409ff500dc8e0cb6c6d7ecb/1256868c-3c64-11ec-9357-086126841eb8.jpg)
![](http://www.eeworld.com.cn/circuit/upload/538a1bc8a409ff500dc8e0cb6c6d7ecb/125722d0-3c64-11ec-9a43-086126841eb8.jpg)
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