Dale wrote:
>There, you see, finally Olin made sense of my addled attempt at answering
>the OP's question.  Thanks, Olin.  Yes, if you amplify the original signal
>you get *higher* resolution relative to the original signal.  In a project
>just recently finished we had to divide a higher (0-20V) input signal by
>4, which gives you *lower* resolution relative to the original signal.
>OK, did I finally get it right?  8-P

The resolution does not change because of the analog scaling applied.
It's determined by how well the max input is matched to the Vref. The
smaller the input max is compared with Vref, the worse the resolution.
Forget what the original input range was - it's not relevant after scaling.

>Damn, it's a good thing I'm not actually working on a PIC project right
>now, I could blow the house up.  Two weeks off work to move into a new
>house is counter-productive - you get no "vacation" from work, and there's
>two weeks' worth of crap waiting when you return to work as well.  That
>and being away from my bench and the projects for even longer and the rust
>rally sets in, doesn't it?

Dale plugs in his new PIC controlled toaster into new house...
WOOF !  SIZZLE !  POP !   :-)
Regards...

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