Alfred Green wrote:
That was kind of what I was looking for. I really am prepared to pay a
few bob for something that I can reliably use as a reference in my lab.

I'm no expert, but I wonder what you might be able to do with a
temperature-compensated design around a LMV431BI.

--
All relevant people are pertinent.
All rude people are impertinent.
Therefore, no rude people are relevant.
-- Solomon W. Golomb