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TMP117: Temperature error

Y.Ottey
Mastermind 6145 points

Part Number: TMP117

Dear TI Team

Can you tell me how the Temperature Error numbers shown in the data sheet Figure.7 (shown below) are calculated?

I think as follows.
(Temperature measured by TMP)-(Reference temperature) = (Temperature Error)

Best Regards,

Y.Ottey

  • 0
    TI__Mastermind 46705 points

    Hi Y.Ottey,

    Yes, Temperature Error is calculated (Measurement - Reference). Figure 7 plots Temperature Error in bins on the horizontal axis. This is known as a histogram.

    thanks,

    ren

  • 0 in reply to Ren Schackmann
    Mastermind 6145 points

    Hi Ren

    Thank you for your reply.

    I would like to ask adding question.

    If you check Figure.7, there are many distributions around -10m ℃ to -30m ℃,
    When our customers confirm about 300 Temperature Errors, the distribution around 10m ℃ to 30m ℃ is large.

    By the way, is the data in Figure.7 measured for samples of the same lot?
    I presume that the distribution of Temperature Error will differ depending on the lot.
    Also, if there is any other content that may cause a difference in distribution, I would be grateful if you could share it.

    Regareds,
    Y.Ottey

  • 0 in reply to Y.Ottey
    TI__Mastermind 46705 points

    Hi Y.Ottey,

    Figure 7 represents samples from multiple lots. Devices may vary within the min and max specification for accuracy. Figure 7 shows that no samples were found to have more than 0.06C error, but we use at least 3sigma to ensure no devices shipped will exceed the min/max spec of 0.1C.

    thanks,

    ren