Ok, got the message, ;-)

Will look for a cleaner solution.

Thanks,

Tal

> -----Original Message-----
> From: pic microcontroller discussion list
> [mailto:PICLIST@MITVMA.MIT.EDU]On Behalf Of wouter van ooijen & floortje
> hanneman
> Sent: Thursday, May 30, 2002 11:10 PM
> To: PICLIST@MITVMA.MIT.EDU
> Subject: Re: [PIC]: Analog input clamp voltage
>
>
> > Is it OK to use the internal clamp diode of the analog input of
> 12F675 for
> > over voltage protection ?
>
> It will probably work when you try it, but expect some funny
> things when you
> build such a unit in large series.
>
> > That is, what happens if the input is connected through a reasonable
> > resistor (e.g. 10K) to a voltage of let's say 20V ?
>
> Then you are operating the chip outside its 'normal operating
> paranmeters',
> which roughly means that you are in the gray area: all *might* be
> well. but
> Microchip will not stand for such use.
>
> Wouter van Ooijen
> --
> Van Ooijen Technische Informatica: http://www.voti.nl
> Jal compiler, Wisp programmer, WLoader bootloader, PICs kopen
>
> --
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>

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