AVR-Chat

It's only as accurate as the resolution of the ADC.

How much inaccuracy are you experiencing?

 

Ray Hurst

Western Digital

20511 Lake Forest Drive

Lake Forest, CA 92630

949-672-9853

 

 

________________________________

From: AVR-Chat@yahoogroups.com [mailto:AVR-Chat@yahoogroups.com] On Behalf
Of rakesh modi
Sent: Wednesday, April 02, 2008 7:50 AM
To: AVR-Chat@yahoogroups.com
Subject: Re: [AVR-Chat] problem in adc accuracy

 

thanks for ur reply,
i like to tell u that i am here measuring a dc signal. so how can i get
proper accuracy?

R.P.Modi

----- Original Message ----
From: Sander Pool <sander@tungstentech.com
<mailto:sander%40tungstentech.com> >
To: AVR-Chat@yahoogroups.com <mailto:AVR-Chat%40yahoogroups.com> 
Sent: Wednesday, 2 April, 2008 6:14:35 AM
Subject: Re: [AVR-Chat] problem in adc accuracy

Shift 2 bits maybe? Unless you meant to throw away the 2 LSBs from the 
converter? Of course when averaging the readings you need to keep Mr 
Nyquist in mind and make sure you're sampling fast enough for the 
frequency domain of your signal.

Sander

BobGardner@aol. com wrote:
>
> Add 16 samples and right shift total 4 bits
> ============ ========= ========= =======
>
>
>

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