[volt-nuts] Some questions to zeners (1N823-1N829)
timka2k at yandex.ru
Sun Jan 27 11:36:30 EST 2013
AJ> I want to have high end specs with the power consumption of a battery
AJ> supplied DMM.
AJ> that is:
AJ> tempco below 1ppm/K
AJ> hysteresis in the 10-40 degree range well below 1ppm
AJ> no sensitivity to humidity (so all plastic housings will fall out)
AJ> ageing in the range of 1 ppm/year after some pre-ageing
I did a lot of references with LTZ1000, LM399 and aged zeners, but
it is not easy to achieve these specs even with LTZ1000. One of the best voltage
standard Datron 4910AV (4x LTZ1000) have only 1 ppm/year drift.
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