That hardly reduces the noise.

The PIC's ADC is rather primitive (I think of it as a stretched 8 bit AD)
and even if you sleep you'll still have noise. The only guaranteed way to
get rid of it is to average 8-16 samples. Or if you require higher sampling
rate use an external ADC with much lower noise. Analog Devices makes good
ones.

On 5/11/07, Brooke Clarke <brooke@pacific.net> wrote:
>
> Hi Alan:
>
> I remember seeing somewhere that to get the full resolution you need to
> have
> the PIC sleeping during the conversion.  That way digital noise will not
> be a
> problem.  Are you doing that?
>
> --
> Have Fun,
>
> Brooke Clarke
> http://www.PRC68.com
> http://www.precisionclock.com
>
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