Using 2.5V for AVDD1 and -2.5V for AVSS
!: Do REF+ and - pins need to be decoupled to AVSS or AGND.?
2. Should an input amplifier ref be AGND or AVSS? (Its rails will either be +/-5V or +/-2.5V)
3. Should RCAPA pin be decoupled to AGND or AVSS?
4.I'm using precision external references for REF+ and REF- (2.5V and -2.5V),
and my input is a single-ended bipolar. Would I be able to use the internal reference, if selected, and still have +/-FS from -2.5 to 2.5V?@