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Thread: [SOLVED] Questions about the bandgap-reference-circuit specified in the datasheet

  1. #1
    Beginner Beginner rockyMin is on a distinguished road
    Join Date
    Sep 2017

    [SOLVED] Questions about the bandgap-reference-circuit specified in the datasheet


    I am reviewing the datasheet to use the TLE9867QXW.
    I have a question about the bandgap-reference-circuit during the ADC review.

    1 Can I measure bandgap-reference using a bandgap-reference-circuit on a measurement unit?
    1.1 If I can measure the bandgap reference, how is it done?

    2. If I have misunderstood the datasheet and asked a question like 1., please answer below if I understand what I understand.
    2.1 This module is itself a bandgap-reference-circuit, which produces a reference voltage for an 8-bit ADC. It also creates the reference voltage for the NVM module.

    The third is the request.

    Request the datasheet detailed above.


  2. #2
    Beginner Beginner
    Infineon Employee
    Infineon Employee
    pestadieu is on a distinguished road
    Join Date
    Sep 2018
    Hi Rocky,

    You can measure the bandgap voltage using the following function:
    uint16 ADC2_VBG_Result_mV(void)
    This function should return a value between 0.8 and 1.64V as specified in the TLE9867QXW datasheet (Rev 1.1) on page 109.

    Best Regards
    The views expressed here are my personal opinions, have not been reviewed or authorized by Infineon and do not necessarily represent the views of Infineon.

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