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 enabled |
| CALSEL | Calibration selection |
| USERTRIM | allows to switch from AOP offset trimmed values to AOP offset |
| CALOUT | Operational amplifier calibration output |
| OPA_RANGE | Operational amplifier power supply range for stability |