prprog

I would like to connect an ADC0831 (thats the one I have) to a Digital Pot.
(I had never used a Digital Potentiometer before. The ADC0831 I had was used on a Basic Stamp project). The idea is to used the ADC chip to sample a voltage an get a resistance value from the Digital pot. Which Digital pot will work with the ADC0831? I will like it to be a stand along circuit, no PIC or Stamp. Which Digital Pot should I get?

Nigel Goodwin

You need a processor, I don't think there's any way to avoid it? - you may as well dump the ADC0831 and choose a PIC with in-built A2D as well.

__________________
PIC programmer software, and PIC Tutorials at:
http://www.winpicprog.co.uk

dknguyen

ADC ICs either have a complicated serial or parallel interface. DIgital pots also have a parallel or serial interface which won't match up with the ADC. You have to connect them together with some logic to get them to do what you want them to do. So either a uC, or a thousand logic gate ICs. Take your pick.

__________________
Disclaimer: Avatar for entertainment purposes only.