The OPAMPs can be configured as three cascaded, inverting PGAs using these settings in OPAMPCTRLx:
MUXPOS | MUXNEG | RES1MUX | POTMUX | RES2VCC | RES2OUT | RES1EN | ANAOUT | |
---|---|---|---|---|---|---|---|---|
OPAMP0 | 0010 | 001 | 001 | 100 | 0 | 1 | 1 | 0 |
OPAMP1 | 0010 | 001 | 010 | 100 | 0 | 1 | 1 | 0 |
OPAMP2 | 0010 | 001 | 010 | 100 | 0 | 1 | 1 | 0 |