• ADUM5400 EMI reduction

    Hello AD-Team,

    I have a card with 4 isolated output ports. Every port uses two ADUM5400 with 8 channels in total. I read AN-0971 and I think I got the point. But to further reduce radiation and noise, I would like to disable the ISO-Power Converter of…

  • AD7609 - Powering from ADuM5400

    Customer has questions regarding powering the AD7609 via the ADuM5400.

    The ADC (7609) requires a 5V analog PLUS a 5V or 3.3V Digital power signal. The ADuM5400 series only supplies a single output (as configured),but can certainly source enough power…

  • ADUM5400 and ADUM1400 EMI issues

    Hello ADI Support:

    My customer is currently designing an isolated serial card using the ADUM 5400. The PCB dimensions will be the standard PC-104 card size. Along with the ADUM 5400, They will also be using the ADUM1400 to isolate other signal lines…

  • 使用ADuM5400时遇到的问题

    ADuM5400的电路原理图如图1所示。

    根据原理图连接好电路(原理图中的电容和电阻未安上),5V供电,使用示波器输出的方波信号作为输入信号,使用示波器对ADuM5400的输入和输出信号进行测量,如图2所示。

    .

    示波器测量到的输入和输出信号如图3所示。

    测量到的输入信号不是原始的方波信号,并且输入和输出信号有很大的差别,请问有可能是哪里出了问题?

  • ADUM1301和ADUM5400通电后急剧发烫

    这是电路原理图,但我只接入两个芯片左侧的5V VCC,其他信号和电源都未连接的情况下,两个芯片在两面针内就急剧发烫!!我查看了手册,并检测了电路,测量了电压,都未发现异常,请问是什么原因导致发生这样的问题?难道是芯片损坏了吗?

  • RE: (ADuM5020 vs ADuM5000W)Do you have one-to-one EMI comparison data?

    Kawa: I don't have a EMI comparison between the ADuM5020 and the ADuM5000.  For the ADuM5020 EMI see the User guide EVAL-ADuM5020EBZ. Emissions on the ADuM5000/ADuM5400 will be shown in the app note AN-0971.

    Regards, Brian

  • RE: Stability in Viso ADUM5000

    Cris:  The ADuM5000 VISO voltage should not change much over time, but it does change with load and temperature.  See attached 5V data.  You are right the non-inverting amplifier would need a divider on the input or output to reduce the output voltage.  Can…

  • TAGS LIST: Interface and Isolation

    LTM2894
    LTM2895
    LTM9100
    LTM2885
    LTM2881
    LTM2882
    LTM2883
    LTM2884
    LTM2893
    LTM2886
    LTM2887
    LTM2889
    LTM2892
    LTC1694-1
    LTC4300
    LTC4310
    LTC4302
    LTC4305
    LTC4304
    LTC4303
    LTC4306
    LTC4307
    LTC4307-1
    LTC430…
  • ADuM54xx: recommendations on how to put 2 ADUM54xx in parallel?

    For redundancy purposes we need some recommendations on how to put 2 ADUM54xx
    in parallel?

     

    It turns out to be a little tricky to use these parts in a redundant parallel
    configuration.  The main issues are:

    1) the power supply sections…
  • ADuM54xx and ADuM64xx: Startup Problems

    My part has startup problems during Power Up

     

    This startup issue looks like that described in the attached note as symptom no
    2.  The solution is to reduce the capacitive load and/or add a resistive load
    to avoid restart issues, as shown…