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Visitor II
February 27, 2020
Question

LSM6DSR 3D accelerometer and 3D gyroscope,I want to know the accuracy of the internal temperature sensor?

  • February 27, 2020
  • 1 reply
  • 652 views

From LSM6DSR datasheet,I can get the temperature sensor ADC characteristics,temperature sensitivity ,as following picture:

​but with no information about accuracy,that is difference between the measure value and the true value.

I want to know something about that,or maybe calibration table and graph of internal temperature sensor.0690X00000DXOymQAH.png

Thanks a lot.​

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    1 reply

    ST Employee
    February 27, 2020

    Hi @ZZach.1​ , you are partially right, from the datasheet there is no direct evidence of the temperature sensor accuracy. However, the LSB value is 1/256 °C, but is is not the accuracy value, because the offset (meaning, the output). is +-15°C. This is the biggest limitation to the embedded temperature sensor. If you are interested in an accurate temperature sensor, I would suggest you to use the STTS22H sensor, 0.5°C accuracy. Regards