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LMT70: Temperature lookup table

Kevin Chen18
Intellectual 510 points
Part Number: LMT70
Other Parts Discussed in Thread: TIDA-00824

Hello, there

I am designing a product based LMT70, and taking the TIDA-00824 "Human Skin Temperature Sensing for Wearable Applications Reference Design" as my reference design.

The Temperature lookup table (pasted below) shown in the datasheet is defined on VDD=2.7V. 

My design is using a different power supply, VDD=2.1V. 

How should I calibrate the table?

Your helps are appreciated.

Kevin

 

  • 0
    TI__Mastermind 31590 points
    Hi Kevin,

    The note "applies for VDD of 2.7V" is misleading a lot of people. We will try to remove the note when we update the next revision. The lookup table in the LMT70 datasheet should be guranteed across power supply specs.

    That being said, you should not calibrate the table.

    Hope this helps. Please let me know if you have further question.

    Aaron