摘要
测量放大器常用来放大微弱差值信号,因而对它的共模抑制性能有较高的要求。分析了对测量放大器应用中共模干扰产生的原因,给出了提高测量放大器共模抑制能力可以采取的实用方法。
Instrumentation amplifier is used to amplify the weak differential signal, so the high quality of the common-mode rejection is required. The common-mode interference in the application of instrumentation amplifier which is not because of grounding is analysed, and some feasible methods on improving the common-mode rejection performance of measuring circuit are given.
出处
《测控技术》
CSCD
2007年第1期87-89,共3页
Measurement & Control Technology
关键词
测量放大器
共模干扰
共模抑制比
instrumentation amplifier
common-mode ,interference
common-mode rejection ratio
