Quote Originally Posted by Srigopal007 View Post
Lets say I use an external A/D Chip this means that I can use different Vref for each sensor. Now what Vref do I choose for the PIC18F6520. Do I simply use Vref = 5V? This is where I am getting confused. Can you please help me. any suggestion is greatly appreciated. Thanks
-Srig
If you're using an external A/D chip, what difference does Vref make if you're not using it?