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The Characteristic of Reformed WILSON Image Current Source and Application to Amplification Circuit of Measuring Instrument
Author(s): 
Pages: 66-68
Year: Issue:  5
Journal: CHINA INSTRUMENTATION

Keyword:  WILSON镜像电流源测量放大器;
Abstract: 基本WILSON镜像电流源的电流I与I′有良好的匹配性,但存在着小量电流失配的不足之处.本文对基本WILSON镜像电流源进行了改进,改进后的电流源诸多性能都有了较大的提高,如差模增益、共模抑制比等,这对于提高前置放大器共模抑制能力、有效采集微弱信号是非常有利的.
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