[SI-LIST] Re: Op-Amp
- From: "Andrew Ingraham" <a.ingraham@xxxxxxxx>
- To: <si-list@xxxxxxxxxxxxx>
- Date: Thu, 4 Mar 2010 19:36:34 -0500
> There are many schemes that are the responsibility of EEs such as
> ourselves to invent, but one I use is to simply cascade a PNP emitter
> follower into an NPN one (or vice versa).
Another one I've seen is to put a forward-biased diode before the emitter
follower. It's the same idea except the Vbe compensation uses the diode
instead of a second follower. And you could use another NPN for the diode,
thus avoiding a PNP.
Andy
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