> So my question:  What's this circuit called?  I've had the hardest time
> looking it up in H&H or online or anywhere.  It's sort of like a scaling
> amplifier and sort of like a level shifting amplifier, but not either one of
> those two.  I'd like to find a reference before I go drawing up some sort of
> frankenstein.

To clarify:

Given Va, Vb, and Vc, with output Vout and single-rail supply Vdd:
Vout = [(Vb-Vc)/(Va-Vc)]*Vdd
where Va > Vb > Vc, right?

Mike H.

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