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AM2612: Regarding ADC VREF and Internal LDO Precision

Lawrence Wang
Intellectual 1200 points
Part Number: AM2612


Tool/software:

Hi experts,

The customer has the following questions regarding the ADC VREF:

  1. The MIN and MAX values specified in the manual for VREF—do they represent the permissible operating range, or do they indicate that the VREF supply itself has such a large deviation?
  2. The VREFHI supply appears to be generated by an internal LDO. Could you clarify the precision of this internal 1.8V LDO?

  • 0
    TI__Mastermind 24573 points

    Hey Lawrence,

    Appologies for the delayed response while I was OOO last week.

    1) This is the permissable operating range for the voltage applied to VREFHI.

    2) The specifications of the internal LDO and Reference Buffer can be found in the Power Management Unit (PMU) section of the Electrical Characterstics.

    Best Regards,

    Zackary Fleenor