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TMP007EASYCALEVM: Calibration

Daisy Hu91
Prodigy 30 points

Part Number: TMP007EASYCALEVM

Some questions about TMP007 temperature reading and calibration.

  1. We use normal mounting before, and now transferred to through hole recently. Normal mounting boards can read real temperature, but through hole can’t, the temperature always higher than real temperature, some accidently a little lower than real temperature. My understanding is the coefficients happen to match with normal mounting in our case, but for through hole, the signal strength is 2x to 3x enhanced, and then has more energy collected in sensors, make more voltage difference and object temperature is calculated higher with the same coefficients, is it right?
  2. TMP007EasyCal tool can be used to collect and analyze the data, and provide unique calibration coefficients. The coefficient values are programmed in the built-in memory of the TMP007, so it is one time  calibration? We never need re-calibrate it if nothing changes (object, distance keep the same). Is it true? Since these data are in TMP007, any system flash memory change such as SW upgrade will not affect the coefficients, is it true?
  3. How can we get TMP007EasyCal software, is it still available in website?
  4. How can we use TMP007EasyCal software to analyze the data from TMP006, since TMP006 doesn’t have math engine and nonvolatile memory for storing calibration coefficients, shall we simulate a similar formula as TMP007 and write the coefficients in our FW?

Thanks,

Daisy

  • 0
    TI__Expert 5695 points
    Hi Daisy,
    TMP007 is not recommended for any new designs. In fact it reached EOL so you can not order it any more. Because of this, TI don't support any evaluation requests or questions on this product.

    If you need contact-less temp sensors, please consider other options in the market. TI don't have direct replacement for infrared based temp sensors and can not recommend other vendors.

    As opposed to a contact-less sensor a contact-based sensor has to be physically touching the monitoring area to measure temperature. It can not be used as an IR sensor.

    If your application can use a contact based temp sensors you can browse our large portfolio at:
    www.ti.com/.../what-are-you-sensing.html

    Regards,
    Jose