38.4.3 Battery Voltage

The battery voltage is internally connected to the channel with the highest index minus two. A fixed division factor is applied on VBAT voltage to fit the CH5 maximum input range (refer to the section “Electrical Characteristics” for the ratio value).

When the channel corresponding to VBAT is selected for conversion, a configurable load is internally connected to VBAT. The load is automatically disconnected from VBAT when the channel is not selecting VBAT or when the ADC is disabled.