[sdiy] Redesigning CA3080 circuits to use LM13600/13700?

[Mike I.]

One gotcha to be aware of is that the Iabc input on the 13600/13700 uses a
different internal current mirror circuit than the 3080... it sits at a
nominal 2 Vbe above the (-) supply pin, where the 3080 sits at one Vbe above
the (-) supply pin. Not normally a problem with the typical expo current
sources and linear current sources used in filters, VCAs etc running on +/-
15V... but could create difficulties with low-voltage battery-powered stuff.
Cheers, Mike