• ADM2485 parameters for RS485

    Hi There,

    We are using ADM2485 for use of RS485 Transceiver for MODBUS communication. I have questions on this chip about following parameters.

    What is the maximum length it supports in RS485 network (Daisy chain)? What gauge? Must be shielded?

  • ADM2485 VDD2 voltage

    One customer is using our ADM2486 and noticed the Vdd2 can only be 5V, he just
    want to know if 3.3v works or not.

    He is evaluating the parts with Vdd1=Vdd2=3.3v and seems it works well.


    Vdd1 is spec’d for both 3.3V & 5V supplies…
  • ADM2485 - Transient Immunity and Line Biasing

    Dear Sir,

    We are manufacturer of range of actuators which uses RS485 communication as backbone.

    Currently we are using TI,  ISO3088 - isolated RS485 converter.

    We are revisiting the design and want to have ADM2485 to be tried and if found satisfactory…

  • Profibus Interface in ADUCM360 using ADM2485

    Dear Sirs,

    I am using ADUCM360 controller for my application and want to send data via PROFIBUS. I see that this component (ADM2485) is useful in establishing a PROFIBUS interface. Could you please suggest some examples for interfacing ADUCM360 with…

  • RE: ADUM3402 and ADM3078 versus ADM2682

    Hi NTipping,

    What DC-DC convertor are you using? Is it an isoPower solution, such as the ADuM5000?

    The power conversion efficiency is not specified for the ADM2682E, it is restricted by the small size of the internal transformer and this is the reason…

  • RE: 签个到,送您好礼啦!(获奖名单已公布)

    深圳   科技园   做数字电源   关注 数字隔离  ADM2485

  • RE: Does ADI have loss of GND Solution


    the RS-485 transceiver we used is ADM2485.

    The power AC 220v is tied to node0, the node0 converts it to DC 12v, then the 12v is power for node1,2..N.

    I hope the circuit I mentioned above can solve the prolbem.

  • need help with ADM2484E

    Have received a problem at use ADM2484E - the starting bit turns out with  "step". The circuit drawing and signal photo in the appendix. In the photo:

    - blue signal (3) - transmission enable - pin 5 DE ADM2484E

    - green (2) - TxD signal on 6…

  • RE: Isolated RS-485 Supply Voltage – ADM2587E Signal and Power Isolated RS-485

    PROFIBUS requires a greater minimum Vod (differential output voltage) from the driver compared to the standard RS-485 requirements. The minimum Vod required for Profibus is 2.1V, the ADM2582E/87E has a lower minimum Vod.

    For comparison, the ADM2485 signal…

  • 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…