In the datasheet for ADR4550 and related parts there are graphs "thermal hysteresis" that show how the output voltage change (in ppm) vs temperature cycling (fig. 113-118 in datasheet)
For example going from (starting point) 25C->70C->25C (end point) will introduce a change.
The question is: If the ADR4550 is power cycled after the end point, will the output voltage then come back to the starting point voltage?
In other words, will the thermal hysteresis be reset together with a power cycling?
I assume it will be like that?
Another related question is if the circuit start at 25C and increase to 70C and I then do a reset (power cycling) will the accuracy then be improved or unchanged?