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ADS1246 - Pullup/down on digital inputs?

Joachim Wuerker
Mastermind 20805 points
Other Parts Discussed in Thread: ADS1246, ADS1248

Question from customer:

Customer is wondering if the ADS1246 has some internal pull-up/down resistors on the digital inputs (especially on the START and RESET pins).

Regards,

  • 0
    TI__Guru* 92655 points

    Joachim,

    The ADS1248/7/6 digital pins do not have a pull up or pull down mechanism. They should be considered floating and require external drive or resistor pull up or down for operation.

    While there may be leakage currents through ESD diodes internal to the device that may occasionally pull the pin high or low, it is not enough to guarantee the pin state.

    Joseph Wu