hi,
i want to use the AD7280A to monitor my 36 cells hybrid capacitor which mean 6 x AD7280A.
My cells voltage range are from 0.8V to 1.6V so i want to know if this controller is suitable for my application
The differential input voltage range specified for the AD7280A is 1 to 2xVref (5V), so you will be operating out of specification at 0.8V which means that the accuracy you get is not guaranteed. You could consider using the AD7284 as an alternative.