small dc signal amplifier schematic need

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  1. - 4th May 2009, 22:18 #2
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    mister_e
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    so you need a gain of 100, with an op-amp.

    http://www.radio-electronics.com/inf...-inverting.php

    just put the resistors value in the formula, and you're ready to go.

    Your op-amp may/will have a dc offset, you'll need to compensate it in software. TL072 is not a rail-to rail one and will not work @5V (from what I remember of), so you'll need to use a higher voltage rail to make it work properly, or use a rail-to-rail one.
    Last edited by mister_e; - 4th May 2009 at 22:23.
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