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ADS124S06: Could you please help back calculate the temperature from the known RTD resistance, as i am finding it difficult to calculate the temperature from the quadratic equation otherwise could you provide the look up table for the same.

Mahima D
Prodigy 130 points
Part Number: ADS124S06

Hi,

  • ADC used is ADS124S06IPBSR and RTD used is PTS1206M1B1K00P100.
  • Could you please help back calculate the temperature from the known RTD resistance, as i am finding it difficult to calculate the temperature from the quadratic equation otherwise could you provide the look up table for the same.

Thank you.

  • +1
    TI__Guru** 113765 points

    Hi Mahima,

    You may find the code useful from the temperature sensing code library.  This library shows both examples of polynomial based conversion as well as a look-up table based conversion.  This library can be found on the product landing page for the ADS124S06 under the Design & development section and Software development.  You can also download it from the tools page ADC-TEMP-SENSOR-FW. 

    Download the library and review the information under the RTD section of the documentation.  At the bottom of the section is information regarding an example table for PT100.  You can create other tables by following a similar format for other RTD types.  For example, to convert the PT100 table to PT1000, adjust the decimal point accordingly.

    Best regards,

    Bob B

  • 0 in reply to Bob Benjamin
    Prodigy 130 points

    Hi Bob,

    Greetings of the day!

    Thank you so much, this resolved my issue.