Other Parts Discussed in Thread: ADS9110, THS4551, OPA625
- would 15k resistors on both inputs of the PGA281 influence the noise performance?
Typically chopping input does not interface good with high impedance source but having 15K on both inputs would it help in cancelling the effect out?
- Would the PGA281 be capable with the 6MHz BW to drive directly an 18bits 2MS/s ADC? (e.g. ADS9110)?
- Would be a kickback filter on the input be sufficient to enable the PGA281 to drive the ADC?
- Or would it be a must to have a buffer between the PGA281 and the ADC? (e.g. THS4551, OPA625)