OPAMP1 control/status register
| OPAEN | Operational amplifier Enable |
| OPALPM | Operational amplifier Low Power Mode |
| OPAMODE | Operational amplifier PGA mode |
| PGA_GAIN | Operational amplifier Programmable amplifier gain value |
| VM_SEL | inverting input selection |
| VP_SEL | non inverted input selection |
| CALON | calibration mode enable |
| CALSEL | calibration selection |
| USERTRIM | User trimming enable |
| CALOUT | Operational amplifier calibration output |
| OPA_RANGE | Operational amplifier power supply range for stability |