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ADS8588SEVM-PDK: PullDown Resistor Confirmation on Ovesampling mode pins

Art Mecina
Genius 16655 points
Part Number: ADS8588SEVM-PDK

Hello Guys,

Good day.

I just like to confirm if the pulldown and pull-up resistors on the Oversampling mode control pins (OS0, OS1, OS2) of the ADS8588SEVM-PDK User's Guide on page 23 of the schematic is necessary or we can do away with that?

ADS8588SEVM-PDK User's Guide:   http://www.ti.com/lit/ug/sbau278b/sbau278b.pdf?ts=1591289731189

Thanks to confirm!

Art

  • 0
    TI__Mastermind 45515 points

    Hi Art,

    I apologized for the late response.

    If these OSx pins are configured locally, the pull-down resistors on the OSx can be removed with a direct connection to the ground, however, a pull-up resistor (5.1kohm or 10kohm) is suggested between them and the DVDD supply if they are forced to high.

    If they are configured remotely and controlled by a controller, the pull-down resistor(10kohm) is suggested in case the OSx will be forced to high by the controller.

    Best regards,

    Dale

  • 0 in reply to Dale Li
    TI__Genius 16655 points

    No worries and Thanks a lot Dale!

    Art