• adum1441

    Hi,

    I am puzzled.

    Fig 1 of the datasheet suggest there are 2 bi-directional channels and two one-way channels.

    Table 23 shows 4 on-way channels; 3 from left to right, 1 from right to left.

    Which ones are bidirectional, which ones are uni directional?

    …

  • ADum1441 communication direction from CPU to ADC

    Hi,

    As per CN-0382 Circuit note AD7124 SPI communication input pins CS, SCLK & DIN are connected to Adum1441 logic input points VIA,VIB & VIC and  SPI communication output pins DOUT connected to Adum1441 logic output point VOD.

    But CN-0376  Circuit…

  • RE: AD7124-4 interfcae with four channel Analog Input 4 to 20mA & 0 to 10VDC

    Hi,

    Have you attached here the schematic? Yes, you can use ADUM1441 as this is also the recommended digital isolator for AD7124.

    Thanks,

    Jellenie

  • CN-0382文档错误

    你好，CN-0382文档，关于ADuM1441应用，在第二页原理图中是不是将ADuM1441输入与输出用反啦。谢谢

  • RE: My Eval board CN-0376 does not work when power (3.3V) is fed through PMOD connector. The SDP board is taken away, the PWW_SEL jumper set to PMOD. The SDO stays low whatever I try. My SPI works OK because with a self fabricated ADC7124 board it works...

    The maximum speed of the ADuM1441 is 2Mbps  according to the datasheet.

  • RE: ADUM1441 application notes

    Hi,

    We do have a technical article: 《Ultralow Power Opening Applications to High Speed Isolation》

    http://www.analog.com/media/en/technical-documentation/technical-articles/Ultralow-Power-Opening-Applications-to-High-Speed-Isolation-MS-2644.pdf

    Regards…

  • Can an ADuM1441 really last 247 k hrs on a battery?

    Can an ADuM1441 really run 247 k hrs on aLithium Coin Cell?

    Asked by Garry C.

  • RE: AD5421 Power On Reset

    Hi Anush,

    Considering the maximum supply current drawn from the DVDD of AD5421.

    • LTC2484 = 250uA
    • ADUM1441 = 900uA (x4)
    • AD5420 = 1mA
    • AD5421 IOVDD = 300uA

    These would already be equal to 5.15mA. We haven't even added the current drawn from the pull-up…

  • RE: 数字电位器隔离

    可以采用ADI的数字隔离器产品进行MCU与数字电位器之间的隔离，如ADuM1441  ADum141E 产品

  • RE: ADuM144x Family intrinsic Safety Certification

    Hi,

    I will have a check whether we have the plan to get the certifications, and for your second question you will find the answer in Table 21 below.

    ADuM1440/ADuM1441/ADuM1442 have the default high output state if input is unpowered and ADuM1445/ADuM1446…