• ADM3485 and ADM3485E

    Hi ,

    I have a question .

    I think that ADM3485E has IEC61000-4-2 Lv4, and HBM is ±15kV(A,Bpin),±4kV(all pin).

    ADM3485's HBM is ±2kV ?

    and ADM3485 has not IEC61000-4-2 ? Lv?

    If you know , please teach me.

    Best regards

  • The difference between ADM3485 and ADM3485E


    Hope you are well.

    Is ADM3485E compatible with ADM3485? Can we replace ADM3485 with ADM3485E directly? Or what should we take care when to do this? Thanks a lot!

  • ADM3485


    Please help to check there are any differences between the two chips.

    MAXIM part MAX3485EESA+T

    I wants to replace the Maxim transceiver with ADI and need the confirmation from your side that this is safe. From paper, the datasheet…

  • ADM3485 (Vcc=3,3V) & ADM485 (Vcc=5V) connection


    is it safe to connect to RS-485 few ADM485 and ADM3485?

    Some devices have Vcc=+3,3V and ICs ADM3485 are used for them,

    some devices have Vcc=+5V and ADM485 are used.

  • RE: Why do not the adm3485?

    Data on the Receiver output of the ADM3485 can't be read by the MCU

  • any isolated RS-422 driver with no bit errors during EFT test?

    1.Do you have any RS-422 drivers and receivers capable of operating during the
    IEC 61000-4-4 Electrical Fast Transient Burst Testing with no signal
    degradation? If so, do you have any application notes and/ or evaluation boards?

  • RE: ADM3485E floating RS485 receiver inputs

    Hello Maxim Galkin,

    Just to confirm, the ADM3485E does not bias the bus voltages to acheive a failsafe receiver output when the bus is idle. Using external pull-up and pull-down resistors would indeed have this effect.

    Instead the ADM3485E receiver…

  • RE: ADM3485, dummy load at termination

    Hi Usaghi,

    Sorry, I had been looking at the ADM3485E datasheet (a similar part with enhanced ESD).

    For the ADM3485 refer to page 10, figure 13 and 14.

    Also, I made a typo, I meant the output current is typically limited to 100 mA (or in the case of…

  • ADM3485 RO output issue

    I'm using ADM3485 and found one problem, could you please help to look into it?

    The schematic is shown as below:

    The waveforms from the oscilloscope are shown as below (DI, DE/RE, RO, B and A):

    The problem is 1v voltage drop for RO signal marked…

  • ADM485 & ADM3485 combination problem


    There is properly working kit

    • USB<>RS-485 adapter (CP2102+ADM3485ARZ, terminated by Rt=120 Ohm),
    • short cable
    • PCB (ADM3485ARZ (also Rt=120 Ohm) +ATmega8A under +3.3V PWR)

    I need to increase the PCB power supply for ATmega8 up to …