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  1. - 29th June 2007, 11:45 #5
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    Ioannis
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    I think Alain that the 358 and 324 are too far away from the rails.

    I would suggest the LMC66x series that are really Rail to Rail, low consumption op-amps. Used them alot. And since the output of the op-amp would always be above ground at least 0,7 volt (Vbe drop), there is no worry about 0 current. It is obtainable (almost!). Enjoy (life, circuits, software, whatever!)

    Ioannis

    P.S Note that transistor and may be the op-amp might have to be supplied with seperate supply above 5V according to the current you would like to obtain.
    Last edited by Ioannis; - 29th June 2007 at 11:49.
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