• Can I connect two transformers to the D1/D2 pins on the ADM2487?

    I’m planning to use both ADM2484 and ADM2487 on my RS485 expansion module (and eventually to the baseboard).  I need an easy way to generate the second isolated supply for the second transceiver.  Do you, or Analog Devices, have a recommendation for this…

  • ADM2487E: D1/D2 pin

    Hello,

    I have a question about the D1/D2 of ADM2487E.

    I am using ADM2487E with the same circuit as Figure34 in the datasheet.

    In my circuit, When VDD1 reaches about 1.4V, D1/D2 and GND are short-circuited.

    And, the overcurrent flows to the transformer…

  • D1/D2 pins of ADM2487E

    Dear Sir/Madam,

    We will use ADM2487E Isolated RS-485 Transceivers.

    If not use osc-circuit,please teach us  how to take care of D1/D2 unused pins.

    Leave its floating? or...

    It would be greatly appreciated if advice could be gotten.

    Best Regards,
    Kou

  • RE: Isolated RS-485 Transceiver with Hot Swap

    Hi Kazu,

    We don't have hot swap characterized for these devices.

    Table 11 and 12 in the ADM2482E/ADM2487E data sheet provide a truth table for outputs based on input steady states.

    http://www.analog.com/media/en/technical-documentation/data-sheets…

  • 数字隔离器产品选型与资源指南(2014年春季版)

    产品组合

    • 单通道和多通道数据隔离器

    • 集成隔离电源的数字隔离器:isoPower

    • USB隔离器

    • 隔离式栅极驱动器

    • 开关稳压器

    • I2C数字隔离器*

    • 隔离式CAN收发器

    • 隔离式RS-485收发器

    • 隔离式RS-232收发器

    • 隔离式Σ-Δ调制器

     

  • RE: Isolated RS-485 transceiver

    Yes, we do have RS-485 transceivers with integrated power isolation as well as signal isolation. The following parts all have isolated power using isoPower chip-scale micro-transformer technology:

    Part Number Isolation Ratin…
  • 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…