[sdiy] Log converters

[Walker Shurlds]

Any of yall ever use any kind of IC for log conversion or exponential
current source?

I'm looking at this; not intended for CV application.

http://www.analog.com/en/fiberoptic/loglimiting-amplifiers/adl5306/products/product.html

(Might actually be antilog... didn't read the datasheet very
carefully yet.)

Anyway, if not this one then is there anything else similar?  (Since it
would have hella better temperature compensation built in.)