Below is customer schematics and ADA4622-1 & TI OPA171 test waveform. The pin3 input signal is DC signal . Why noise is much higher of ADA4622-1 than TI OPA171? It is directly replace OPA171 on the same board for testing. But ADA4622-1 has poor signal on output. Thank you.
[edited by: PChen833 at 8:13 AM (GMT -4) on 12 Aug 2021]