> I'm planing to use the A2D functionality of the 12F675 to 
> convert 0-10V out to a 0-1024 range, 10 bit A2D conversion. 
> Everything on the 12F675 looks good for that. My question is 
> whether I have to supply a 10V for Vref/GP1/AN1

no, that would fry the chip

> or is there a 
> way to scale VDD internally

again, supplying 10V to a pin would fry the chip

> such that I can get a 0-10V 
> mapping on the A2D conversion that is performed on AN0?

us and external voltage divisor

Wouter van Ooijen

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Van Ooijen Technische Informatica: www.voti.nl
consultancy, development, PICmicro products
docent Hogeschool van Utrecht: www.voti.nl/hvu
 

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