Temperature compensation (Was Re: [sdiy] Exponential converter information)

[Aaron Bader]

Wow. That was a lot of information... thanks guys. I think I have my
head on the ground in this area now.

I've got plenty of ca3046's laying around, RCA production, so I think
I'll put those to work. I missed the tempco order, so I think I'll
either heat them or try some other idea.

One idea that comes to mind in René's circuit (fig 3 at
http://www.uni-bonn.de/~uzs159/expo_tutorial/index.html) is to vary the
Iref with temperature to compensate for shifts in gain... and
temperature sensors like the LM335 are not that expensive.

Any chance this idea is feasable?

-- 

"Not a bird not a leaf not a sound/And well after the close of time" 
	--Front 242

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