wuchy143
Member
Hi All,
I ran across an op amp which I cannot figure out how it works. More precisely I do not know how the attached potentiometer effects the OPA. I was able to do some simple calculations to get the DC gain and verified it in LTspice. Though, this doesn't help me in understanding what the pot does or how it is commonly used like this with an OPA.
Does anyone know or can explain what's going on?
I ran across an op amp which I cannot figure out how it works. More precisely I do not know how the attached potentiometer effects the OPA. I was able to do some simple calculations to get the DC gain and verified it in LTspice. Though, this doesn't help me in understanding what the pot does or how it is commonly used like this with an OPA.
Does anyone know or can explain what's going on?