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Subject: Re: 1V voltage reference

Date: 06/29/00 at 1:43 AM
Posted by: louis humble
E-mail: louishumble@yahoo.com
Message Posted:

In Reply to: Re: 1V voltage reference posted by John Dunn - Consultant on 06/20/00 at 9:57 PM:

hi,

I am an electronics novice. pls forgive me if my questions
look silly to the gurus. I still don't get it. I did as
John suggested and got a stable 2.5v reference voltage,
then connect a 3k/2k voltage divider to it. When open
circuit, the output voltage is 1V, very nice. but once
I connect it to the DAC, the voltage drops to 0.77V
immediately. As a result, the dac is not working
as expected. the resistors available to me are just
the cheapest carbon resistors. That is why at the first
place I asked the question because I thought a simple
voltage divider is not going to work.

thanks in advance

louis


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