Is it possible a biggest voltage in the ADC input than the voltage supply ?

[Juan Moya]

Hello,

I want to supply the nRF52832 with a power supply of  2.2Vdc. The uC has to measure an analog voltage between 0 to 2.5V using the internal reference.

Is it possible a biggest voltage in the analog input than the voltage supply of the uC?

Best regards,

Juan

[ketiljo]

Nope, that's not possible. In any case, the voltage on the AIN pin must be lower than the reference voltage to the ADC.