page 12:
INPUT BUFFER
...The buffer is controlled by ANDing the state of the buffer pin with the state of the BUFFER bit in the ACR register.
page 16:
ACR (Address 02H) Analog Control Register
Reset Value = 00H
bit 7 BOCS: Burnout Current Source
bit 6-5 IDAC2R1: IDAC2R0: Full-Scale Range Select for
bit 4-3 IDAC1R1: IDAC1R0: Full-Scale Range Select for
bit 2-0 PGA2: PGA1: PGA0: Programmable Gain Amplifier
:(((((
