Will these parameters be improved at the narrow temperature range(for example +30°C~+40°C)?
If yes, could I have the improved data at the above condition?
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We do expect these parameters to have a tighter range over a smaller temperature range (e.g. 30C to 50C), however I have no data to back it up. I would expect that we're very close or better than the customer's requirements over this narrower temperature range.
From the designer:
INL/DNL will definitely be better in the 30 to 50C range because most of the drift in mismatch comes from the change in Gm and Vt over temperature. If you hold the temperature more constant, then these mismatches won’t change as much. Also, the bandgap reference, which affects the gain, has a temperature coefficient which also will be better over a tighter temp range.