offset trimming register for normal mode
| AO1_OPT_OFFSET_TRIM | OPAMP1, 10-bit offset trim value for normal mode |
| AO2_OPT_OFFSET_TRIM | OPAMP2, 10-bit offset trim value for normal mode |
| AO3_OPT_OFFSET_TRIM | OPAMP3, 10-bit offset trim value for normal mode |
| OT_USER | Select user or factory trimming value |