• ADuM142 unused input pin

    We will replace ADuM131 with ADuM142 on same pcb board.

    So, one input pin and one output pin would be unconnected state.

    Is it okay?

  • (ADuM142) Rjc for ADuM142E1WBRQZ-RL7

    Hi .

    Do you have Rjc value for ADuM142E1WBRQZ-RL7?

    Best regards


  • (ADuM142)Is the output status Indeterminate?

    Hi !

    I have a question about ADuM14x.

    At table 24, it is not written about VDD1 & VDD2 Unpowerd.

    When VDD1 & VDD2 unpowered,  would the output status goes to Indeterminate?

    If the output side VDD is not powered, would the output status goes…

  • ADuM14xE Mixed Operation Volta

    Hello everyone, how do you do?

    Lately, we have been using ADuM5201 to isolate two circuits, provide power supply and to communicate between them.

    However, we use the 5V input power to provide 5V on the output, and we are using a AND gate on the output…

  • ADUM3442 EOL Replacement


    I saw that the ADUM3442CRWZ was EOL'd. This component is used in a product currently. The component does not have a fail-safe output. 

    There is a recommended replacement ADUM142E1BRWZ. This component has a fail-safe high output.

    There is another…

  • RE: ADUM14xE operation voltage

    Hello Micha,

    the ADuM142E and ADuM1251 are  'isolators', hence no connection between VDD1/GND1 towards VDD2/GND2.

    As both parts offer signal level translation this scenario demands for mixed power supply levels.

    ADuM142 offers 1.8-5,5V VDDx range…

  • RE: Bi-directional Isolator or direction switchable isolator

    Hi Jason,

    what an Idea about ADuM142E and output setting to Hi-Z.

    Thank you, these tips are really helpful.

    Wish you the best.


    Arnost :)

  • (ADuM140E1)Supply current.

    Hi !


    Our customer want to know the supply current.

    I already asked about this and you gave me ADuM142's spread sheet.

    (ADuM140)Supply current with OOK. 

    Can you give me the same thing for ADuM140?


    Also , ADI's newest iCoupler series…

  • RE: Digital isolator behaviour with miso signal

    Hello Nidhi,

    Unfortunately modulating power on the secondary side will not be adequate.  Each side of our devices operates independently.  The VOD pins are active if power is applied to side 1 of our device.  If there is no power on the secondary, the output…

  • RE: (ADuM140)Supply current with OOK.


    You are right - there is a typo in the ADuM14x datasheet. For the Quiescent current tables for the ADuM141 and ADuM142 the Test Conditions for the ADuM140 is correct, the ADuM141 and ADuM142 Conditions need to be changed to match the ADuM140…