AVR-Chat

Thanks a lot for everyone's help.  Sounds like I'm good to go.   Steve

 

From: AVR-Chat@yahoogroups.com [mailto:AVR-Chat@yahoogroups.com] On Behalf
Of Jeff Blaine AC0C
Sent: Friday, February 05, 2010 2:12 PM
To: AVR-Chat@yahoogroups.com
Subject: Re: [AVR-Chat] ADC source impedance

 

 Steve,

Yes, sorry for the error. 100k. There will be some finite upper range to
that due to leakage but it's got to me miniscule. But that's the general
idea. And if you are talking about sampling 1x/sec then the 20K mentioned in
the other message is not a problem at all. Good luck.

Regards/Jeff

From: Steve Hodge 
Sent: Friday, February 05, 2010 2:53 PM
To: AVR-Chat@yahoogroups.com <mailto:AVR-Chat%40yahoogroups.com>  
Subject: RE: [AVR-Chat] ADC source impedance

Ah, got it. So it sounds like I'm just fine merely doubling it to 20 Kohms
and only sampling once a second. I assume you intended to say "100k
equivalent input"? Steve






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