The biggest influence on the effective resolution comes from oversampling the signal and using the integrated hardware averaging feature of MSPM0 to improve the nominal resolution of the ADC. The nominal and effective resolution results increase when comparing the standalone ADC in 12-bit mode against the ADC used with 64 times oversampling, as shown in Table 4-1. The measurements in Table 4-1 use the internal reference at 2.5 V and an input close to full scale. Notably, there is significant deviation between the nominal and effective resolutions in both cases. However, clearly the oversampling improves the effective resolution by almost 3 bits, which is expected with an increase in nominal resolution.