I have a differential 50R source and I want to amply it with +10V/V of a gain. but the source is noisy and I should filter it.
when I check the step response without the filter there is no problem:
but when I put a "15MHz 50 Ohm LPF" between the source and the FDA, the step response is terrible
what should I do?
I used some techniques to reduce the overshoot but none of them work correctly!