I'm having issues setting up the ADC to take stable readings in a varied sample rate environment.
The ADC is called as and when an event occurs, this may mean a minutes separation or sequential. The ADC value needs to be equal to have a validity. The voltage sources are separate INA197s.
In one mode I need to sample two channels with the same module, both have the same voltage but the first channel records a higher reading than the second.
To resolve this I'm having to discharge the sample capacitor for 2us, and sample for 800ns, this is not ideal.
As I understand it this should not be the case.
Any suggestions?
