Hello.
We are going to use bipolar supply in system: AVDD = +2.7V, AVSS = -2.7V.
We want to connect REFCOM pin to GND = 0V.
Absolute maximum ratings for REFCOM from datasheet do allow such kind of topology,
but in "Pin Functions" table we can see a strict directive: "Negative voltage reference output. Connect to AVSS."
So the question is: can we connect REFCOM pin not to AVSS, but to the middle point between AVDD and AVSS?