[volt-nuts] The "averaging reference"

Andreas Jahn Andreas_-_Jahn at t-online.de
Thu Dec 18 13:53:03 EST 2014


I would expect a stability of around 10-15 ppm over one year after 6-12 
months run in time.
The reason is that with the plastic package all references will have 
about the same change in the order of 0.5ppm/% rH change.
So assumption is that you have maximum 30% rH change over one year.

With best regards


Am 18.12.2014 um 16:41 schrieb Joel Setton:
> Folks,
> In my search for the Perfect Volt, I'm thinking about building a 
> reference voltage generator which would average the voltages generated 
> by 8 or 10 REF102CP chips (with a simple resistor network), mounted in 
> a temperature-controlled box.
> Among all the experts on this list, does anyone have any experience 
> with such a project? It looks good on paper, but what kind of 
> stability can I reasonably expect?
> Many thanks!
> Joel Setton
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