• ADM2687

    Hi.
    Connecting as fig.46 datasheet, is it necessary bias resistor ?
    If not , what do
    i have in a momentary
    transistion with all device in receving state? Is it
    necessary a ground conection on the bus among the devices ? the total lenght of
    bus (9 devices…

  • ADM2687 Emission Problem

    Hello ,

    My name is Meir and I am DFAE.

    One of my customers use the ADM2687 - Signal and Power Isolated RS-485 Transceiver.


    They have an emission issue on ~180MHz frequency and 360MHz frequency (the second harmony) and they can't to pass the EMC…

  • ADM2687 Emission Problem

    Hello ,

    My name is Meir and I am DFAE.

    One of my customers use the ADM2687 - Signal and Power Isolated RS-485 Transceiver.


    They have an emission issue on ~180MHz frequency and 360MHz frequency (the second harmony) and they can't to pass the EMC/EMI…

    • attachments.zip

  • ADM2687 decoupling concern

    From the data sheet for ADM2687 I see application information on page 18 for decoupling capacitors for the device. I have a question about the 10uF capacitor that the data sheet suggests. I'm in the process of defining the capacitor part numbers to use…

  • ADM2687E 2 layer PCM

    Hi. 

    My name is Dmitry, I'm ADI rep. FAE.

    My customer (annual volume is 200.000-300.000 pc/year) asked is it possible to implement ADM2687E on 2 layer PCB like ADE2587E (UG-916 ) to reach the same radiated emissions?

    Thank you.

  • ADM2687E: Power consumption while dissabled

    Q 

    All graphs within the datasheet indicate the device power consumption with the
    driver enabled, there is no information as to the device power consumption with
    the driver disabled. Could you provide this information please?

     

    A 

    To provide…

  • ESD on ADM2687 board

    Hi All -

    We are spinning a board which uses your very fine ADM2687 and are planning to add some degree of ESD protection.

    Not trying to meet any particular standard at this time.

    An MCC SM712 and 10 ohm series resistors as per AN-960 seems like a good…

  • Difference between ADM2682E and ADM2687E

    Q 

    What are the differences between the ADM2682E and ADM2687E?

     

    A 

    The only difference between the two parts is the data-rate, the ADM2682E is a
    16Mbps part and the ADM2687E is a 500kbps part.

  • ADM2682E/ADM2687E Isolation Voltage

    Q 

    What isolation voltage does the ADM2682E/87E meet?

     

    A 

    The ADM2682E/87E provides an isolation withstand voltage of 5 kVrms per UL1577
    between the two sides of the isolation barrier. This is the transient voltage
    that the part can withstand…

  • ADM2682E/ADM2687E Recommended Application Notes

    Q 

    Do you have any recommended application notes that would help design in the
    parts?

     

    A 

    Please go to www.analog.com and search for:
    AN-0971: Recommendations for Control of Radiated Emissions with isoPower Devices
    AN-960: RS-485/RS-422…