> My application was isolating a current shunt but we couldn't get the gain=
 or offset sufficiently stable
> over the temperature range (-20C to +50 ?). IIRC we were looking for <<1%=
..

HP (probably now Keysight, or whoever handles the semiconductors) make an o=
pto for exactly this use.

Don't have the part number handy but can dig it out if wanted.



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