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TMP117: Material about temperature error of TMP117

Y.Ottey
Mastermind 6145 points
Part Number: TMP117
Other Parts Discussed in Thread: TMP275, TMP107, TMP116

Dear TI Team

Our customers are considering the TMP117 as a replacement from the thermistor.
They are asked why TMP117 is able to achieve an error of ± 0.1 ° C.
The data sheet does not provide details, so please let me know if there is any material that contains the above.

Best Regards,

Y.Ottey

  • 0
    TI__Expert 3360 points

    Hello Y.,

    I will check with our internal teams to inquire on how this is achieved and get back to you very soon.

    Thank you,

    Chris

  • 0
    TI__Mastermind 43795 points

    Hi Y.Ottey,

    What details is the customer looking for? I can make some comments about accuracy:

    • It's normal for technology to advance. :) Our first digital device with 0.5C accuracy, the TMP275, was released in 2006. Afterwards, we did not focus on advancing accuracy further and actually fell behind the market in this regard. We caught up with a series of releases in the 2010s:
      • 0.4C TMP107 in 2015
      • 0.2C TMP116 in 2017
      • 0.1C TMP117 in 2018.
    • The exact reasons for the improvements are trade secrets.
    • TI continuously engages in developing semiconductor process technology that is used by the whole company. This means improvement of analog circuits as well as digital circuits. Our mixed-signal temperature sensors benefit from both.
    • Our semiconductor design team contributed new techniques and implemented known strategies that hadn't been applied to our temperature sensors before.
    • Our test engineers also developed new technology and standards to support this level of accuracy in production.

    thanks,

    ren