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Original question:

UCD3020: UCD90320 HW schematic revew

UCD3020: ADC reference in TI fusion digital power designer

Mike Hsu
Intellectual 300 points
Part Number: UCD3020
Other Parts Discussed in Thread: UCD90320

Hi there

What does external ADC reference voltage do ?

Does it relate to AMON pins?

It means that AMON pin can not accept voltage higher than 3.0V?

  • 0
    TI__Genius 17090 points

    Mike, this is really a UCD90320 question.  While I am familiar with the UCD3020, I can't translate this knowledge to the UCD90320 because the pinout is different, and the pin names are different, and I'm not familiar with the programming of the 90320.  For future questions, please refer to the 90320.  I'm going to forward this to the 90320 application engineers.  

  • 0
    TI__Guru 60100 points

    Hi

    UCD90320 can support both internal and external ADC reference which is to determine the max voltage that ADC can sample

    If you need monitor any voltage larger than the reference, a external voltage divider is required.

    Regards

    Yihe