Hi Richard,

Well, yes, you are right. I guess the point is that the S&H cap will tend
to average out small amounts of noise during the sampling time, BUT we
don't want power supply noise to throw off the reference during the actual
A/D conversion. I think that is the point of putting the PIC in sleep.

Sean

At 08:22 AM 6/1/99 +1200, you wrote:
>I may be off track - but you're saying you have low noise in sleep mode -
>but isn't this is during the A/D conversion period - not the sampling time?
>Sorry if I've got this wrong.
>
>Richard

|
| Sean Breheny
| Amateur Radio Callsign: KA3YXM
| Electrical Engineering Student
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