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Re: [AVR-Chat] Re: ADC Vref

2007-12-13 by David Kelly

On Wed, Dec 12, 2007 at 11:47:55PM -0500, David VanHorn wrote:
> > You'll most likely have to use a voltage divider to ensure that your
> > analog input voltages remain below the maximum level.
> 
> You can also use an op-amp to subtract X volts from the input signal,
> if you do that properly.

Yes, "subtract", but remember never to use gain of less than 1. If gain
of less than 1 is desired use a gain of 1 to buffer, then drive a
voltage divider.

-- 
David Kelly N4HHE, dkelly@HiWAAY.net
========================================================================
Whom computers would destroy, they must first drive mad.

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