Hello, I was studying some schematics. There was a dual OP amp IC being used. One of the internal amplifiers was being used as (I belive) signal conditioning before doing a measure with an ADC. I think I understand that part.
What I don't understand is that the other OP amp inside the IC was connected: non-inverting to GND, and a 100 kOhm between inverting and output. It isn't connected to anything else, ideally it has no function, but I guess that if they did that it's for a reason. Anyone knows why?
(I probably didn't explain myself too well so I'll add an schematic with the circuit.) Dual OP Amp IC is a TL082 if that's usefull.
Thanks!