Hi team
Customer wants to design a circuit for leakage current sensing, which is nA level. I suppose OPA392 with fA Ios would be suitable for this. Do you have a recommended circuit for nA current sensing? High side or low side would be ok.
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Hi team
Customer wants to design a circuit for leakage current sensing, which is nA level. I suppose OPA392 with fA Ios would be suitable for this. Do you have a recommended circuit for nA current sensing? High side or low side would be ok.
How about using a transimpedance amplifier configuration shown below where Vout=-Iin*Rf (see below).
For more design details please read following three series blog: