I'd like to know the difference of role of reference pins, especially REFIN- and REFGND.
I've evaluated ratiometric bridge measurement with AD7195 and works fine.
Now I'm considering AD7765 to get more sample rate on same ratiometric bridge measurements.
Can I connect REFGND to external reference input and use it as like REFIN- ?
the REFGND pin of the AD7765 must be tied to AGND. It cannot be tied to a voltage above ground as can be done with the AD7195.