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Lpc2000

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

Message

Re: internal AD converter

2004-09-16 by lpc2100_fan

Hi,

assuming that the signal you are scanning is relatively slow, you can
do something like adding up 4, 8 or 16 ADC-results and then shift the
sum by 3, 4 or five to get an average number. 
If you need the speed of the ADC, the programmable gain amplifier
might be the next best solution. 
There is always an option that the least significant bit toggles, as
Robert already pointet out.
An external ADC with 12-bit and connected through SPI is another
expensive option.

Cheers, Bob


--- In lpc2000@yahoogroups.com, Robert Adsett <subscriptions@a...> wrote:
> At 01:59 PM 9/16/04 +0100, you wrote:
> >ok, that makes sense, but using this ADC how can I get the most of it?
> 
> That depends.  What is your input (frequency, bandwidth, noise level, 
> impedance...)?  What are you trying to do with it?
> 
> Robert
> 
> " 'Freedom' has no meaning of itself.  There are always restrictions,
> be they legal, genetic, or physical.  If you don't believe me, try to
> chew a radio signal. "
> 
>                          Kelvin Throop, III

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