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CCS/TMP112: TMP112

Carlos Martins10
Prodigy 175 points
Part Number: TMP112

Tool/software: Code Composer Studio

Good Night Community!

I have one question is special for TI employees. 

I`m including the new sensor TMP112 NIST traceable in my product, however, I would like to know for How long the calibration of this sensor is valid? After deploy my device for how long the factory calibration is valid (1 year, 2 years, 10 years). And how the sensor calibration is affect by time?

I need a sensor able to operate for 5 years at least, and with short changes in sensing characteristics. 

Can you help me with this question?

Have an amazing week. 

Thank you for your attention 

  • 0
    TI__Expert 5695 points

    Hi Carlos,

    please refer to the spec "Long Term Stability" on section 6.5 of the TMP112 latest data sheet. I captured an image highlighting the spec. 

    Regards,

    Jose

  • 0 in reply to Jose Arteaga4
    TI__Mastermind 35895 points
    The spec that Jose highlighted is referring to 3000 hours of simulated stress at 150C. Depending on the application temperature, this test simulates 10 years or more of in-system use. This is a standard qualification test used throughout TI during the initial product development. The relationship between stress time, stress temperature, application temperature, and simulated life span in the application are defined by the Arrhenius equation.

    All that aside, I'm not sure that this is the answer you're looking for. If you need to maintain a calibrated instrument, it should be checked annually. This is the case for all of our lab equipment within TI. There are ANSI and ISO standards that define maintenance of calibrated equipment. You may be interested in this paper written by Fluke. assets.fluke.com/.../MSC2009_Deaver.pdf

    Ren