I am using LM2902 as a unity gain voltage follower to isolate measurements of a sensors voltage. ( datasheet: http://www.ti.com/lit/ds/symlink/lm2902.pdf )
the sensors i wan to measure operate at a voltage of 0-5v , for one of them, this voltage is inputted into pin 3 of the op-amp, pin 1 and 2 are connected together and also to the analog pin of a ATmega328p to measure it (or so i thought).
i messed up and wired pin 1 and 2 together and also to the 5v pin of the Atmega 328p instead of A7, pin 3 was connected to the sensor. this op-amp is used on 3 sensors, and they all gave junk information when this happened.
i am a mechanical engineer, and this sort of situation is out of my league ATM. can someone explain to what ended up happening when i miss-wired the op-amp to the Atmega? can i wire it properly and run it, or is the op-amp fried?