DAC voltage Lifting up?
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Posts: 46,084
Dear stamper;
I need to lift up DAC1257 output (range 0 to 2.043V) to a range 2.4V
to 3.7V. I tried it with LM324 by giving offset voltage using 50k pot
to + terminal and DAC output feed to - terminal through 10k and their
is 10k pot feedback from output of LM324 to - termianal to control
gain of LM324 output. I forgot to tell that LM324 running on single
power(5V), not dual (-5V~5V). It did not work. please help me out.
I need to lift up DAC1257 output (range 0 to 2.043V) to a range 2.4V
to 3.7V. I tried it with LM324 by giving offset voltage using 50k pot
to + terminal and DAC output feed to - terminal through 10k and their
is 10k pot feedback from output of LM324 to - termianal to control
gain of LM324 output. I forgot to tell that LM324 running on single
power(5V), not dual (-5V~5V). It did not work. please help me out.
Comments
'true' 5V would be 3.5V, and if your 5V is actually 4.75, it will be
down at 3.25V.
David Erbas-White
sogilo wrote:
>Dear stamper;
>I need to lift up DAC1257 output (range 0 to 2.043V) to a range 2.4V
>to 3.7V. I tried it with LM324 by giving offset voltage using 50k pot
>to + terminal and DAC output feed to - terminal through 10k and their
>is 10k pot feedback from output of LM324 to - termianal to control
>gain of LM324 output. I forgot to tell that LM324 running on single
>power(5V), not dual (-5V~5V). It did not work. please help me out.
>
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