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.

TIA opa 如何选择

     TIA将一个电流信号转换成电压,并且经常用于测量弱电流,如图1所示。

       由于电流信号一般很小,在nA 左右,且频率在10k左右,再选择百k 左右的Rf 电阻, 在这样的应用中,从 噪声 ,带宽 等角度,应该如何选择合适的opa?