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Elevated Temp. effect on ADIS16255.


I used ADIS16255 single axis gyro in the application where temp. reached to 125 deg C and 150 Deg C. Since ADIS16255 is recommended to operate up to 85 Deg C, I saw significant increase in temperature dependent bias (around 3.2 deg/s) at 125 deg C and (around 5.2 deg/s) at 150 Deg C. This temperature dependent bias at 125 and 150 C calculated after noise filtering. Does anyone know the reason for increase in bias at such elevated temperature?

Does this gyro has any stopped functioning mechanism at elevated temperature? If so, at what specific temperature this gyro stopped or creased to function?