This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

AMC1200使用时拉低采样电阻电压

Other Parts Discussed in Thread: LMV321, AMC1200

你好,我目前用的是AMC1200作为隔离,后端采用LMV321作为放大后再进行电压跟随。采样电阻是一个25℃时为10K的NTC热敏电阻,前端加了一个300K的电阻分压,整个电路的电压为5V,这样当热敏电阻的阻值为10K时,其上面的电压应该为160mv左右,此时仅仅用万用表测试热敏电阻的电压得到的结果和预计相近,但是当把这个分压电路接入AMC1200后,热敏电阻的电压下降了几十mv,请问这个应该如何解决?