EP39SCK38SDO37CS#36FO35SDI34GND33GND32GND31REF-30REF+29VCC28MUXOUTN27ADCINN26ADCINP25MUXOUTP24NC23CH722CH621NC20NC19CH518CH417NC16NC15CH314CH213NC12NC11CH110CH09NC8COM7GND6GND5GND4EXT#3BUSY2GND1