jim@jpes.com wrote:
> If you run the 10 bit A2D with external reference voltages of around
> 1.54 volts, you'll still get around 1.5mv resolution.

No, you won't have any idea what the resolution is or even if the A/D will
function at all, at least for many PICs.  Some PICs may allow such a low
Vref, but without qualifying your statement to particular PICs it is just
wrong, especially since someone else already made the same mistake this
morning.  You guys really need to start reading the datasheet.


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