AnsweredAssumed Answered

Bad step response

Question asked by xzsawq21 on Oct 29, 2017
Latest reply on Nov 3, 2017 by xzsawq21


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!