100 Megohm on the mega88. I call that high as well!
Dave Pallant
AVR-Chat@yahoogroups.com wrote on 12/09/2005 19:15:56:
> On 12 Sep 2005 at 14:04, kholt@sonic.net wrote:
>
> >
> > Yes, I always put in an external RC between any sensor and the
> > A-D input. It's a bargain in space and cost, taking advantage
> > of the high input impedance of the A-D (i.e.no opamp required).
> > Ken
>
> � �Hummm, what do you call "high input impedance"
?
>
>
>
>
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