Hello,
Voltage references has usually specified a parameter 'temperature drift limit', e.g. 10ppm per Celsius degree. What about long term issues related to this drift? Can the drift go above that limit after years? If so, how long period can I expect with drift as specified?
TIA
Some semiconductor manufacturers include graphs for specification derating over time. Everything drifts for one reason or another. Better add a potentiometer if that matters.
This one has a chart:
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"Kevin McMurtrie" schrieb
No, I think they all are about accuracy drift, not related to temperature. Trimpot won't help for coefficiency exceeded.
thx
Stating the obvious perhaps, but a pot will generally do nothing positive for stability. A digital correction is often preferable.
Best regards, Spehro Pefhany
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Temperature usually makes a big difference in aging rates.
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Mark
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