when I have a "accident" from my unbuffered LTZ-references by shorting
the output (for a very short time),
(so setting the temperature setpoint to infinite and thus the heater
cirquit goes to maximum output)
I usually have a large shift on the device. (several ppms).
A part of the shift can be cured by power cycling (cooling down and
heating up to normal operating temperature).
The remaining shift (-2 .. -5 ppm usually) is permanently on the device.
After such a event I usually have around 6 months increased ageing rate
until it goes back to the normal -1 .. -2ppm/a
with best regards
Am 11.04.2018 um 13:58 schrieb Poul-Henning Kamp:
In message <canx10hd3-xs0nkq38vj5yctat1hkdsqumvlp+anm9-+--6y...@mail.gmail.com>
, "Dr. David Kirkby" writes:
Does anyone know if desoldering one and resoldering resets the aging
I don't think it "resets" as such, but it certainly starts some kind
of aging process, as does hard knocks, thermal shocks, vibration, ...
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