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Lpc2000

Index last updated: 2026-04-28 23:31 UTC

Message

Re: LPC213x, analog port question.

2004-12-27 by lp2000c

What chip was that?  We know the problem exists on 2114/2124.  The 
question is whether it exists on 213x.
 
> On a design I did, where I only wanted to use one of the ADC 
inputs, and connected
> the other lines to 5V devices, I got absolutely garbage readings 
even though the actual
> AD channel I was using never went above 3.3V. So it appears that 
the statement below
> is correct.
> 
> Regards
>    Anton Erasmus
> 
> 
> > --- In lpc2000@yahoogroups.com, "Richard" <richas@y...> wrote:
> > > 
> > > Note:  5V on any pin that CAN be configured as an ADC input will
> > > corrupt the ADC conversion values.
> > > 
> > > Richard
> > 
> > 
> > 
> > 
> > 
> > 
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> 
> -- 
> A J Erasmus

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