• What's the difference between the ADuM1440/41/42 and the ADuM1445/46/47?

    Q 

    What’s the difference between the ADuM1440/41/42 and the ADuM1445/46/47?

     

    A 

    All devices in the family contain a refresh circuit to guarantee dc correctness
    at power up. If no pulses are received on the secondary side of the transformer
    …

  • ADuM144x Low Power Digital Isolators:  What's the Difference between ADuM1440/41/42 and ADuM1445/46/47?

    All devices in the family contain a refresh circuit to guarantee dc correctness at power up. If no pulses are received on the secondary side of the transformer for approximately 200 µs, the input side is assumed to be unpowered or nonfunctional and…

  • Can a ADUM5401 (power+4ch) feed a ADM3311 (8ch RS232) plus a ADUM1440 (iso 4ch) in a robust way?

    We have a design proposal for a 8 ch power and data isolated RS232 interface using 3 Analog Devices circuits:

    • 3.3V/3.3V system
    • ADM3311 3/5 ch RS232 driver
    • ADUM5401 isopower and 4ch (3/1) data
    • ADUM1440 isodata 4ch (0/4) data micropower

    5401…

  • RE: ADuM7440 EMI vs Data-rate

    Hi Dave,

    Thanks very much for the reply. I'll take a look at the ADuM1440 and see if it will fit my needs.

    Kind regards,

    Lionel

  • About insulation guarantee

    ADuM1440'S Data Sheet ,Table 18 shows . Maximum Continuous Working Voltage1

    I want to know that table18's guarantee is under Tj<150 ℃　（useing table 17 condition)?

    or limited condition?

  • RE: ADuM1400 VDD2-GND2 voltages when VDD2 is NOT supplied

    Thank you for your reply.

    I like to confirm one more thing.

    the customer said as follows.

    Is this the same reason and can he fix this problem when he use ADuM140E or ADuM1440?

    He supplied 3.3V between VDD2 and GND2.

    when he measured the voltage between…

  • 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…

  • RE: 告诫——这些应用慎用光耦或数字隔离器

    ADuM1441是具有默认高电平输出和3/1通道方向性的微功耗、四通道数字隔离器，其基于ADI公司iCouplerRegistered技术。（提供双通道产品）。 这些隔离器件结合了高速互补金属氧化物半导体(CMOS)与单片空芯变压器技术，可提供出色的性能特性，优于光耦器件和其它集成式耦合器，同时在现有的所有隔离产品中功耗最低。 ENX信号可用于禁用内部刷新，从而将总静态电流降低至不足1 µA。

     

    ADuM1440/ADuM1441/ADuM1442/ADuM1445/ ADuM1446/ADuM1447系列四通道2…

  • RE: ADI芯情2017大回顾，有奖认领属于你的“好芯事”

    本质安全认证数字隔离产品ADuM144x系列

    ADuM144x系列是经过认证的本质安全(IS)数字隔离器，基于IEC 60079-11:2011标准。与传统的光耦合器相比，ADuM144x系列减少了所需的印刷电路板空间，从而简化了设计，由于它不再需要多个二极管和电阻器，因此还可减少器件数量，降低了设计复杂度。与其他保护方法相比，该系列还提供更高的数据速率，可更高效的运行，并且降低安装成本。

    产品详情：

    http://www.analog.com/cn/products/interface-isolation…

  • RE: “芯”来乍到，求赞、求围观！

    贰号芯品：首款本质安全认证数字隔离器ADuM144x

    业界经过认证的本质安全(IS)数字隔离器ADuM144x系列，基于IEC 60079-11:2011标准。

    4通道ADuM144x系列数字隔离器采用iCouplerRegistered技术，非常适合危险区域内使用的电气设备设计。与传统的光耦合器相比，该系列数字隔离器减少了所需的印刷电路板空间，从而简化了设计，由于它不再需要多个二极管和电阻器，因此还可减少器件数量，降低了设计复杂度；与其他保护方法相比，这些新产品还提供更高的数据速率，可更高效的运行，并且降低安装成本…