> Nice stuff, James.  Good point about the filter.

Thanks.  I totally agree with you about the incremental development.  One
other thing I want to make sure the OP knows that is relevant to this is
that Maxim will send you a handful of those (or any of their) ICs totally
free with no questions asked if you order samples from their website.  So
I'd order up and then develop the simple version.  By the time this is done
you should have a package of free chips to play with and a circuit that is
ready to use them.

Nick


>
> I would argue for using the simplest possible output (unfiltered) first,
> trying it, then going with the simplest possible filter (an RC filter)
> trying that, and then go for the complex but better performing filter if
> needed.   I find when I take that approach, I get the project off the
> ground and working, then have more motivation to get the trickier details
> done.  If I design the whole thing out to be the finest from the start
> (the way I might do a commercial project) it takes so much time that I am
> on to some other project before the thing is finished.  Hobbies are never
> done, you know.

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