Thanks for pointing me in the right direction. So on this board I want to use a 3.3v regulator so I need to enable the internal regulator. Am I on the right track with the attached schematic? Also the spec sheet mentions to make sure AVDD and AVSS are connected. All of my channels are digital but I connected AVDD to the 3.3v + and AVSS to the 3.3V-

Schematic.pdf