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UCD3028 EADC reference DAC TEMPERATURE COEFFICIENT

jun yin
Intellectual 875 points
Other Parts Discussed in Thread: UCD3028

Hi Sir:

1\I can't find the temperature coefficient of UCD3028's EADC reference DAC; could you please provide it? is it negative?

2\and for ΔADC_Ref, there is only negative min value defined in datasheet, does it mean that its temperature coefficient is negative?

  • 0
    TI__Genius 17090 points
    Other than the internal temperature sensor, most of the UCD30xx analog signals do not have a predictable temperature coefficient. We do our best to make them flat, so some devices will go up a little, and others will go down at different spots along the temperature curve.
  • 0 in reply to Ian Bower
    Intellectual 875 points
    Hi Ian:
    Do you have any test data of EADC reference DAC and ADC_ref under different working temperature? From our production test data, all UCD3028 show negative temperature coefficient of reference, that's wield;