AVDD1CH0+2CH0-3CH1-4CH1+5CH2+6CH2-7CH3-8CH3+9CH4+10CH4-11CH5-12CH5+13REFIN/OUT+14REFIN-15AGND16DGND17DRA#18DRB#19DRC#20OSC121OSC222CS#23SCK24SDO25SDI26RESET#27DVDD28