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I think than if R14 and R16 are 0 Ohm, it is working as a comparator, with feedback at V-. You have to fix these resistors, once you decide the gain of the diff-amplifier.
I think than if R14 and R16 are 0 Ohm, it is working as a comparator, with feedback at V-. You have to fix these resistors, once you decide the gain of the diff-amplifier.