On Tue, 19 Jun 2007 19:35:43 -0000 "Dave VanHorn" <microbrix@gmail.com> wrote: > > > I'm still curious enough to experiment with this idea > compared to my > > typical OpAmp solution. > > It may "work" on one unit, but if you can't handle the > leakage allowed > in the spec without significant error, then you're in > trouble. > > Remember, you have to add this error to all the other > sources of error > in the ADC measurement. > > And Op-Amps have their own input "leakage". Jim --------------------------------------------------------------- The Think Different Store http://www.thinkdifferentstore.com/ For All Your Mac Gear ---------------------------------------------------------------
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Re: [AVR-Chat] Re: Using the ADC to measure the battery supply?
2007-06-19 by Jim Wagner