I would like to use an AD4005 with an ADA4254. The signals of interest are below 10kHz on a single input, so there is no multiplexing required. The frontend will presumably be rather far away from the PIC, so I would like to keep the clock frequencies as low as possible.
As I am completely new to the topic of ADCs, I came so far that it would be good to have at least 20kSPS. The chopping clock output of the ADA4254 has 125kHz. I could divide this by two in order to get a synchronized aquisition out of the AD4005 at 62.5kSPS. How jittery is the clock of the ADA4254? Will this lead to problems?
Would it be better to use a 1MHz clock output from the PIC for the ADA4254 and divide it accordingly for the AD4005?
Are there any other options I miss? Is it even worth the trouble with aquisition well below half the chopping frequency?
Thanks in advance for your replies and best regards,