Main problem: recently doing a micro electric current detection instruments, but the latest test found I turn V input when what all don't pick up at the start of the numerical value is lower, but will slowly rise over time, replacing the feedback capacitance, is really don't know what is the problem, is the great god met, how to solve, also please let us know, small in this thanked the,,

CodePudding user response:

Such questions likely smaller, circuit diagram is distinct, who will confirm with you the circuit diagram of identical to answer you?

CodePudding user response:

reference 1/f, the wise know already should good karma response:

this question less likely, circuit diagram is distinct, who will confirm with you the circuit diagram of identical to answer you?

I want to see anyone encountered similar problems

CodePudding user response:

The cause of the amplifier? Or the cause of the adc

CodePudding user response:

Micro current should be zero drift of prevention measures

CodePudding user response:

Electric voltage across a resistance is commonly used in amplifier, see you the problem of op-amp Settings,