> An example of a microcontroller with 8-bit registers and 10-bit A/D
> inputs is the PIC16F870.  I'm thinking of using a PIC16F870 as a
> replacement for the PIC16F72 in my SWR/wattmeter project, as this
> would improve precision at the lowest power levels.

If you are wanting to do that, is it worth going to one of the 18F PICs that 
has 12 bit A/D ??

I don't know if any are pin compatible to what you are using, but probably 
worth a look. 

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