[volt-nuts] Does desoldering and resoldering an LTZ1000A reset the ageing?

[Andreas Jahn]

Hello,

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

Andreas

Am 11.04.2018 um 13:58 schrieb Poul-Henning Kamp:
> --------
> In message <CANX10hD3-XS0NKq38vj5ycTAT1hkDsqumvLP+anm9-+--6y9wg at mail.gmail.com>
> , "Dr. David Kirkby" writes:
>
>> Does anyone know if desoldering one and resoldering resets the aging
>> process?
> 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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