View Full Version : Stable Microvolt source

01-20-2007, 04:52 AM
Is it possible to use a Stamp to create a·selectable,·utra-stable precision microvolt source of -5 to +20 microvolts?
Maybe this could be achieved by inputting a digital signal·to a·DAC and some sort of feedback mechanism to compensate for any drift due to electrical noise or temperature effects. The Stamp couid controll this.

01-20-2007, 05:05 AM
Stamps aren't good at "ultra-precision". They're very good at TTL and doing stuff in a 10 to 20 mSec timeframe.

Having said that, op-amps are pretty good at precision. And a BS2 is pretty good at reading an A to D Converter to get feeback from an op-amp. It's possible.