[time-nuts] App Notes Voltage References

Bruce Griffiths bruce.griffiths at xtra.co.nz
Sun Nov 30 01:15:16 UTC 2008


Mark Sims wrote:
> If you want to play with the Xicor references,  I can recommend the device sold by Ebay zildjianboy7 (Doug Malone)  See current auction item 280289828315.   For $30 shipped,  it makes for a very handy meter checker / portable voltage reference.  Not as stable as the Geller Labs board,  but it runs on a 9V battery.
>   
Beware of their large flicker and wideband noise.
Because of the relatively high flicker noise, they wont, in practice be
anywhere near as stable as a good zener based reference
However they may be useful for checking lower resolution devices such as
a handheld DMM.

bruce




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