By mistake, I have provided -12V instead of +12V to the AD420.
I have measure the output, it is giving 9.93V on Pin 17.
Have I lost the IC? Any solution for that.
How can I test or check, whether it will work or not?
You may have damaged the part. Are you using the internal reference (by connecting ref_out to ref_in)?, have you selected the 0 to 5V range using the range_select pins? can you communicate with the part and set the output voltage on pin 17 to zero-scale, mid scale and full scale?
Yes I was using internal reference and 5V out of it is used for another purpose. I am using +/- 5V range. I am not getting zero scale, mid-scale and full scale but getting 9.93V on output pin 17.
What voltage do you measure at the REF_OUT pin?, can you share a schematic of your circuit?