Other Parts Discussed in Thread: THS4551, , , THS4541
I used THS4551 to drive ADC3683 and found large glitch (200mV peak) on the nodes V_P and V_N.
The waveform is scope calculation result V_P - V_N. The scope bandwidth is 200MHz so the waveform shall be more or less deformed. But according to the frequency it should be the sampling glitch.
Circuit diagram is shown below, the FDA part is connected to ADC by differential cable around 60cm.
The ADC input filter is designed following the ADC3683 EVM.
1. When the driving side is all turned off, the glitch is around 60mV peak. So is the large peak caused by the design at the FDA output?
2. Will it influence the ADC sampling？If so, how to minimize the glitch?
Thanks in advance!