Re: Read internal thermal sensor of PIC32MX350
I am quite sure there isn't a separate ADC.
It is a separate Input to the same ADC as all other AD pin,
and you select the temperature sensor the same way as you select a different ADC input pin,
just that there is no pin, just an internal connection.
Note that the temperature sensor may need to be enabled before it will work,
and may be slow responding, so may need longer sampling time than external ADC inputs.