• ADuM4190: FAQ

    FAQ

  • Certificates for the Safety and regulatory approvals for ADuM4190

    Q 

    Can you provide the certificates for the Safety and regulatory approvals for
    ADuM4190, I can not find them on your website



     

    A 

    I have attached here the safety and regulatory approval certificates for
    ADuM4190. These certificates will be posted…

  • difference between the ADuM3190 and the ADuM4190

    Q 

    What is the difference between the ADuM3190 and the ADuM4190?

     

    A 

    The ADuM3190 and ADuM4190 have the exact same function and performance, but the
    ADuM3190 is in the QSOP-16 package for applications where the Isolation voltage
    requirement is 2500V…

  • Why do the ADuM3190 and ADuM4190 have two error amplifier outputs

    Q 

    Why do the ADuM3190 and ADuM4190 have two error amplifier outputs?

     

    A 

    The ADuM3190/ADuM4190 have an EAOUT pin 6 which has an output voltage specified
    to 2.4V and an EAOUT2 pin 7 which is specified to 5.0V. The EAOUT2 pin provides
    a higher voltage…

  • Can I use the ADuM3190/ADuM4190 as an isolated op amp to convert a 4-20mA signal and      how would it work?

    Q 

    Can I use the ADuM3190/ADuM4190 as an isolated op amp to convert a 4-20mA
    signal and  how would it work?

     

    A 

    You could use a 75 ohm input resistor to convert the 4 – 20mA signal to a 0.3V
    to 1.5V signal, which would fit the input common mode…

  • ADUM4190 applicaion issue

    Hi ADIexpert

    I would like to use the refout1 of ADUM4190 as a voltage reference to my other circuits in the schematic

    I connected the REfout1 to the non invert pin of a TL074 to build a voltage follower without attaching any loading on the output of TL074…

  • RE: ADUM4190 design question

    Today, I had the same problem.I read your reply, but I still don't understand.What I want to ask is,how to use ADUM4190 as voltage follower?how to design the circuit?Looking forward to your reply.

  • ADUM4190 Input voltage range

    Hello

    Could you teach me about the input voltage range of ADUM4190 ?

    I can not find the description of input voltage range in the datasheet. 

    I thought that input voltage range of ADUM4190 means input common mode  range (0.35V~1.5V)  desiceibed in the datasheet…

  • 请教关于ADuM4190的使用问题:如何使其作为电压跟随器使用？

    我需要从+IN输出0-5V，使用ADuM4190作为电压跟随器，是的EAOUT获得相同的输出，但是经过实际电路焊接测量，始终得不到作为电压跟随器的输出，因此想请教我的问题出在了那里？  我该怎么做才能实现这样的电压跟随器的输出呢？  谢谢，期待回复

  • ADuM4190　input impedance

    Hi

    I have a question on ADuM4190.

    What is the input impedance of the ADuM4190?

    I want input impedance to be 22kΩ or more.