ADN4624 unused pins

What is the recommended way to handle unused channels on this part?

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  • +2
    •  Analog Employees 
    on Aug 18, 2021 3:31 PM

    Hi SQuinn, 

    The inputs of unused channels should be biased to prevent an indeterminate output state. 

    For the unused channels, I'd recommend connecting the DIN+ input to the 1.8V VDD1 power supply rail, and the DIN- input to the GND1 rail. This will set the channel in a defined logic 1 output state. 

    The DOUT+ and DOUT- outputs of the unused channels can be left floating. I'd recommend not terminating these channels, to save on power consumption, 

    Regards,

    Neil 

Reply
  • +2
    •  Analog Employees 
    on Aug 18, 2021 3:31 PM

    Hi SQuinn, 

    The inputs of unused channels should be biased to prevent an indeterminate output state. 

    For the unused channels, I'd recommend connecting the DIN+ input to the 1.8V VDD1 power supply rail, and the DIN- input to the GND1 rail. This will set the channel in a defined logic 1 output state. 

    The DOUT+ and DOUT- outputs of the unused channels can be left floating. I'd recommend not terminating these channels, to save on power consumption, 

    Regards,

    Neil 

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