Quote Originally Posted by Tobias View Post
I have a PIC16F876A. On pin A.5 I want to monitor a 0-5v signal. I am not too sure about what to do with the VREF+ pin. Can I just hook up 5V from the power regulator? Do I need to connect VREF- to ground? Is a cap suggested on the A.5 line? I looked over the site for a schematic and struck out.
Thanks
Toby
Depending on how you have your A/D converter registers set up. Either they can both be internally referenced (Vref+ = Vdd, Vref- = Vss), or one or the other or both can be externally referenced. It's in the analog section of the datasheet.