4.7 Input Offset Voltage Correction
The input offset voltage on devices with this OPA module are factory calibrated to within the specified limits listed in the “Electrical Specifications” chapter of the data sheet. For additional error correction, the OPAxOFFSET register can be used to correct for changes in operational amplifier performance over time or temperature. On a Power-on Reset, the OPA module defaults to the factory calibration, erasing any value that was previously written to OPAxOFFSET.