Analyzer
Full Member level 6
Dear All,
I would like to make a small differential voltmeter for my application. I would like to measure two test points and would like to receive difference between two points. For example, i have 2 voltage points, v1 and v2. My circuit should give me Vd=v1-v2. I used differential operation of op-amp but i got parasitic values and never got robust values. So i decided to ask, if someone knows any other way to measure difference or should i change my op-amp with better one (e.g. which op-amp is better?)
TIA
Analyzer
I would like to make a small differential voltmeter for my application. I would like to measure two test points and would like to receive difference between two points. For example, i have 2 voltage points, v1 and v2. My circuit should give me Vd=v1-v2. I used differential operation of op-amp but i got parasitic values and never got robust values. So i decided to ask, if someone knows any other way to measure difference or should i change my op-amp with better one (e.g. which op-amp is better?)
TIA
Analyzer