41.6.11.4 Gain Compensation

To perform gain compensation positive input must be close to VDD, but less (e.g. 0.8*Vref for instance) to avoid ADC saturation. The value for gain error compensation is obtained by dividing the theoretical ADC conversion result by the result from measurement. The obtained value for gain error compensation must be written in the ADC GAINCORR register.

Figure 41-13. Gain Compensation