I am using this Microcontroller - 100 pin
I have configured pin 82 as an ADC input. ADC Reference voltage is 5V (provided from an LDO whose input voltage is 12V)
To test my ADC accuracy, I took a thin 45cm copper wire from that pin and started to measure.
But while the board was in functioning, by mistake I used the soldering iron at the other end of the wire taken from the ADC pin. The soldering iron was around 370degC for 3sec contact at the wire.
Noticing this immediately, I turned off the module power and restarted it again. Upon restarting, the power module started consuming an excess current of 80mA.
What would have happened at the ADC input pin due to this mistake?
And what would the same scenario if those pins were output (open drain or push pull)?