On Wed, 28 Feb 2018 06:32:58 +0000 Andre <an...@lanoe.net> wrote: > Can you make use of an LM3900? I have one here *somewhere*. > I think its a quad Norton, not sure how long its been there for.
Theoretically yes, in practice you are better off using an opamp that is not 40 years old and not as quirky as a Norton opamp. You can buy standard bipolar opamps that beat those old beats at all metrics, and they only cost little more, if at all. The only place where these beasts really excell is that the inputs are basically independent of the supply voltage, given the maximum input current is not exceeded. Linear has a few opamps that can do the same trick (though in a slightly different manner), but they also cost a bit more. Attila Kinali -- <JaberWorky> The bad part of Zurich is where the degenerates throw DARK chocolate at you. _______________________________________________ volt-nuts mailing list -- volt-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/volt-nuts and follow the instructions there.