Yahoo Groups archive

Lpc2000

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

Message

RE: [lpc2000] Re: LPC2129, analog port question.

2004-11-29 by Lasse Madsen

Hi Richard

From what specification do you concoct that information? 

Regards
Lasse


-----Original Message-----
From: Richard [mailto:richas@...] 
Sent: 29. november 2004 18:54
To: lpc2000@yahoogroups.com
Subject: [lpc2000] Re: LPC2129, analog port question.



Note:  5V on any pin that CAN be configured as an ADC input will 
corrupt the ADC conversion values.

Richard


--- In lpc2000@yahoogroups.com, "Anton Erasmus" <antone@s...> wrote:
> On 29 Nov 2004 at 12:29, digtalfreak wrote:
> 
> > 
> > 
> > I am using the LPC2129 in an application and I need to know if 
the
> > analog port will be damaged if the port gets more than V3A at any
> > time. The manual says that the voltage must not be over V3A or 
the
> > analog input readings will be invalid. Does that mean that they 
will
> > be invalid forever or only for the moment where the voltage is 
over
> > V3A?
> > 
> 
> The pins are supposed to be 5V tolerant, hence my assumption is 
that they should
> be able to handle up to 5V. The A/D converter is designed, so that 
it's full range is
> only V3A volts, hence an input above this voltage will give 
invalid A/D results.
> 
> Regards
>    Anton Erasmus
> 
> 
> > 
> > ------------------------ Yahoo! Groups Sponsor
> > --------------------~--> Make a clean sweep of pop-up ads. Yahoo!
> > Companion Toolbar. Now with Pop-Up Blocker. Get it for free!
> > http://us.click.yahoo.com/L5YrjA/eSIIAA/yQLSAA/dN_tlB/TM
> > -----------------------------------------------------------------
---~-
> > > 
> > 
> > 
> > Yahoo! Groups Links
> > 
> > 
> > 
> > 
> > 
> > 
> > 
> 
> -- 
> A J Erasmus






 
Yahoo! Groups Links

Attachments

Move to quarantaine

This moves the raw source file on disk only. The archive index is not changed automatically, so you still need to run a manual refresh afterward.