• ADM2486 with i.MX8M plus

    Hello

    I want to use ADM2486 with i.MX8M Plus. But I'm not familiar with RS-485.

    Please let me know how to control "RE".

    Is it OK to connect RE and DE, or do I have to control using GPIO?

    I'll use Linux Ubuntu.

  • ADM2486应用电路的问题

     大家好,我在使用ADM2486进行TTL转RS485时,用到了如图所示电路,但是发现电路不工作,485输出没有任何信号,请问可能的原因是什么?  RE和RTS我使用的一个高发低收的触发信号,Vdd1的+3.3V使用的dsp28335板子过来的+3.3V;Vdd2是使用的经过DC-DC隔离之后的+5V电压。这个电路将PV直接与+3.3V连接是否正确?万望不吝赐教,谢谢。

  • ADM2486 Ground connection

    Hello,

    One customer is reviewing the ADM2486 for UART to RS485 converting.

    1. Datasheet noticed the Vdd2 can only be 5V, I just want to know if 3.3v works or not. 

    2. Is there any problem for operation to connect GND1 and GND2 without isolation?

    Thanks…

  • RE: ADM2486 GND2 Connection

    This question has been assumed as answered either offline via email or with a multi-part answer. This question has now been closed out. If you have an inquiry related to this topic please post a new question in the applicable product forum.

    Thank you,
  • RE: About "Sticky Bit" Issue data of ADM2486E

    This question has been assumed as answered either offline via email or with a multi-part answer. This question has now been closed out. If you have an inquiry related to this topic please post a new question in the applicable product forum.

    Thank you,
  • RE: 关于ADM2486在RS485通讯使用中终端电阻的使用

    This question has been closed by the EZ team and is assumed answered.
  • ADM2486芯片在Profibus DP中的应用接口电路

    采用VPC3+C与磁隔离485转换芯片ADM2486设计应用Profibus DP通信过程中,经常会损坏ADM2486,无明显损坏痕迹,更换新的芯片后,恢复正常,有无VPC3+C与ADM2486在profibus DP应用中到“D”型9针插头的外围参考电路?

    下面是先前的ADM2486到“D”型9针插头的设计电路,是否存在哪些不合理处?敬请指出。

    谢谢!

  • ADM2483_ESD AB impedance

    I have some questions about ADM2486. Hope you can help me with them:
    1) What is the ESD level of ADM2486? Does it pass HBM 1000V or higher than
    1000V?
    2) My customer tests with a new part to measure the resistor between Vcc2 and
    Gnd2…
  • 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…
  • Can the ADuM1250 drive a 25 metre line?

    Can the ADuM1250 drive a 25 metre line?

     

    The ADuM1250 is specified to drive 400pF. A 25m line is likely to have much
    more than 400pF of capacitance (very roughly 2pF /cm so 2500*2 = 5000pF)
    A 25m line will also couple large amounts of noise, e…