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Old 31st May 2008, 08:27 AM   #1
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Default create a DC offset value for non-inverting amplifier

Hi all,

anyone knows how to create a DC offset value for non-inverting amplifier?

When i try to put resistors to create the offset value of 2.5 v at o/p , the DC o/p is close to 0V which means there is no gain in the circuit, but i did put resistors to set the gain to 1001times. I dun understnd why the amplification is not done?
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Old 31st May 2008, 08:42 AM   #2
AndrewT is offline AndrewT  Scotland
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build a DC amplifier.
Then apply a voltage bias/offset to the input that results in the correct output offset.
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Old 31st May 2008, 08:42 AM   #3
Nordic is offline Nordic  South Africa
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please post schematic.. it is a universal language we can all engage in...

edit.. lol, hi Drew
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Old 31st May 2008, 09:18 AM   #4
Mooly is offline Mooly  United Kingdom
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Why do want to do this anyway-- just interested
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Old 4th June 2008, 09:01 AM   #5
Elvee is offline Elvee  Belgium
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Default Re: create a DC offset value for non-inverting amplifier

Quote:
Originally posted by finding_apple
Hi all,

anyone knows how to create a DC offset value for non-inverting amplifier?

When i try to put resistors to create the offset value of 2.5 v at o/p , the DC o/p is close to 0V which means there is no gain in the circuit, but i did put resistors to set the gain to 1001times. I dun understnd why the amplification is not done?
In general, when there are no particular constraints, I do it this way:
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