[volt-nuts] Homebrew LTZ1000 reference?

[gsteinba52 at aol.com]

         Linear Technology has an application note on this very subject:

cds.linear.com/docs/Application%20Note/an86f.pdf

Devour the whole app note - the analog information was written by Jim Williams (who, as they say,
has forgotten more about analog electronics than I will ever know...). A great read!

Jerry Steinback






> Mike S wrote:
>
> Anyone interested in working toward a reasonable cost, homebrew LTZ1000 
> based reference?
>
> Since the 1000 can be had for <$50, and seem to be the best available 
> (other than JJ), this might be an interesting project.
>
> The 1000 itself has great specs, most of the variability seems to come 
> from the circuitry around it. One could go out and buy $100 zero-tempco 
> resistor arrays, etc., but a more reasonably priced reference might be 
> built by ovenizing things. But there may be better ideas.

> The Chinese thread I pointed toward a couple of weeks ago seemed to be 
> headed in this direction. Group buys/shared development/shared PCB 
> costs, etc. There could even be an opportunity to do a group 
> calibration of the end result.

> I know there are folks here brighter than me in this matter, but I'm 
> willing to contribute what I can.