Hi..
Q1. I see a lot of reference design for ADCs uses a small capacitor- resistor network at its analog input.. please tell me what that network is for..?
Q2. I want to use ADS890xB 20 bit ADCs to sample alternating voltage waveform, it says it comes with '1 channel fully diffrential analog' input. should i use above network for my input type. (connecting signal line to ANIN-P and GND line to ANIN-N)