Op Amp n Input Multiplexer

Name:
OPnINMUX
Offset:
0x13 + n*0x08 [n=0..2]
Reset:
0x00
Access:
-
Bit76543210
MUXNEG[2:0]MUXPOS[2:0]
AccessR/WR/WR/WR/WR/WR/W
Reset000000

Bits 6:4 – MUXNEG[2:0]: Multiplexer for Negative Input

Multiplexer for Negative Input

This bit field selects which analog signal is connected to the inverting (-) input of OPn.
ValueNameDescription
0x0 INN Negative input pin for OPn
0x1 WIP Wiper from OPn’s resistor ladder
0x2 OUT OPn output (unity gain)
0x3 DAC DAC output (DAC and DAC output buffer must be enabled)
Other - Reserved

Bits 2:0 – MUXPOS[2:0]: Multiplexer for Positive Input

Multiplexer for Positive Input

This bit field selects which analog signal is connected to the non-inverting (+) input of OPn.
ValueNameDescription
0x0 INP Positive input pin for OPn
0x1 WIP Wiper from OPn’s resistor ladder
0x2 DAC DAC output (DAC and DAC output buffer must be enabled)
0x3 GND Ground
0x4 VDDDIV2 VDD/2
0x5 LINKOUT OP[n-1] output (Setting only available for OP1 and OP2)
0x6 LINKWIP Wiper from OP0’s resistor ladder (Setting only available for OP2)
Other - Reserved