I have evaluated the ADA4254 and I really like it's flexibility. So much so, I'm considering using multiple ADA4254s in the AFE of a system using an AD7606B clocked at 640kHz and using it's oversampling function to yield 40 or 80ksps.
Yes, I know I will have to use a difference op amp (which one?) as the AD7606B and can't connect it directly but that's a different question asked on the Precision ADC zone (I may still use an AD7609 but will have to compromise on raw sample rate).
To the question:
I have the opportunity to drive the chopper clock on the ADA4254 to avoid it beating with the 40kHz sampling. Is this approach reasonable? What frequency should I clock the ADA4254 at? (120/125)*1MHz?