• ADuM1401: SPI wires

    I need to reinforce some SPI communication bus.
    The point is I would like to want how long the SPI wires can be if this bus is
    isolated by an ADUM1401 ?

     

    It is a very simple bus, and the answer depends on the data rate. 
    They need to guarantee…

  • ADuM1401: Low supply voltage

    I am using ADuM1401 in a battery powered system with two AA batteries.

    I was very surprised when the battery voltage dropped below 2.7V (exactly
    2.62V) and ADuM1401 begun to generate

    sporadically 800ns long pulses at the output VOD (pin no. 6…

  • ADUM1401: I/P maximum voltage

    I want to use the optoisolator ADUM1401ARW in my design. It will be used for
    the isolation of the TXD data line of the RS232 port. Could I connect the TXD
    data line of the PC's RS232 directly to the isolators inputs?
    In many application I saw…

  • Сurrent consumption ADUM141E and ADUM1401

    Hi,

    The client is using ADUM1401, but he wants to change to a newer ADUM141E. But he says that AdUM141E has a higher current consumption than ADUM1401, and a lot of heat dissipation. 
    Data rate 2 MHz, continuous data transfer mode. Source of 8 channels…

  • ADUM1401: Is it possible to disable the refresh pulses on the iCoupler?

    Is it possible to disable the refresh pulses on the iCoupler?

     

    No, the refresh pulses are internal to the iCoupler devices. In the absence of
    logic transitions at the input for more than ~1 μs, a periodic set of refresh
    pulses indicative of…

  • ADUM1401: Can I increase max data rate to 2Mbps and will this compromise pulse width distortion spec ?

    The data sheet for ADuM1401 specifies that the maximum data rate for
    ADuM1401ARWZ is 1Mbps to guarantee a maximum pulse width distortion of 40ns.
    Could ADuM1401ARWZ support 2Mbps data rate if the 40ns pulse width distortion
    spec can be compromised…

  • ADUM1401使用中损坏

    我有三块板使用了 ADuM1401CRW。一边是3.3V,另一边5V,在使用过程中不知道什么原因损坏了两片,输出脚高电平(输入脚有波形)。

    请问这个是什么原因可能会引起芯片损坏?电路图如下:

    图中AI-5V,在不始用的时候电源是被关闭的。

  • ADUM1401 spi最高速率?

    ADUM1401C支持最高90mbps,理论支持spi是45mhz。手册上表明ADUM1401C传输延迟是32ns。半时钟周期必须大于传输延迟的2倍。通过计算支持spi速率是是7.8mhz。也不是45mhz。

    请问是这样吗?

     

  • RE: ADuM1401 input

    This question has been assumed as answered either offline via email or with a multi-part answer. This question has now been closed out. If you have an inquiry related to this topic please post a new question in the applicable product forum.

    Thank you,