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Fast ADC

Fast ADC

2006-03-14 by Hossam Alzomor

Hi

What's the fastest ADC could be achived with LPC micros?

Best Regards
Hossam Alzomor
www.i-g.org

Re: Fast ADC

2006-03-14 by pitstock_kiwi

The data sheet says
10 bit conversion time >= 2.44 µs.

So 1/2.44µs yeilds about 410 killer samples per second.

My testing shows that using Keil C the best I can get is about 250 
Kps. I had it running at 330K samples doing a few tricks but I have 
not verified that the samples are valid at this speed. It seems that 
assembly may be required to get 410K if it is possible. All these 
tests were in not burst mode as I dont want to use burst mode for my 
reasons. I also did not overclock the ADC, I will look at that last.

Anyone got 410K out of it ? I would love to here how fast people have 
got it going.

Cheers
Keith
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> 
> What's the fastest ADC could be achived with LPC micros?
> 
> Best Regards
> Hossam Alzomor
> www.i-g.org
>

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