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HDC1080 / Temperature Accuracy

Guru 15530 points

Hi,

My customer is evaluating the HDC1080 and it doesn't seems to be accurate on the temperature measurement.

Its accuracy is ±0.5℃~±1.0℃.

I' m requesting detail of the measurement data to the customer.

Could you tell me caution points to keep the accuracy if it has?

Best Regards,

Kuramochi

  • In reply to LeonardEllis:

    Hi,

    We have a same situation in one of our customers.

    Does anybody have a conslusion of this thred?

    Best regards,

    Hiroaki
  • Guru 15530 points

    In reply to Hiroaki Tanikoshi:

    Hi Tanikoshi-san,

    I heard that this accuracy error is caused by self heating.
    And this error occurs notably on EVM, because EVM layout is inadequate.
    So I think that this error can be improved by appropriate layout pattern and low reading frequency.

    EVM layout and the datasheet has not been updated yet....

    For your reference.

    Best Regards,
    Kuramochi
  • In reply to TQ:

    Hi Kuramochi san

    Thank you for your kindly response. 

    I understood the cause and we try to improve the problem.

    Thank you.

  • In reply to LeonardEllis:

    This is Raghavendra from NPA Bangalore, India . We are also facing the same problem of Temperature in stability up to +/-1 C . the temperature randomly changes within +/-1 C every sample .

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