如图所示,放大器的正端输入电流Ipiezo+Id,负端输入电流Id,目的是把Id的影响去掉,并输出一个电压信号,请问存在这样的放大器么
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如图所示,放大器的正端输入电流Ipiezo+Id,负端输入电流Id,目的是把Id的影响去掉,并输出一个电压信号,请问存在这样的放大器么
那是要使用跨阻放大器把电流转换成电压么,还是直接在仪用放大器的正负端口各接一个电阻就行了
看一下LM359是否可以,电流差分运放。
The LM359 consists of two current differencing (Norton) input amplifiers.