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Results on Analog.com

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  1. ADM4853
    Production
    Product
    RS-485 and RS-422
    5 V, ⅛ Load, Slew-Rate Limited, RS-485/RS-422 Transceiver (Half Duplex, 10 Mbps)
    ADM4853

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  2. ADM4851
    Production
    Product
    RS-485 and RS-422
    5 V, ⅛ Load, Slew-Rate Limited, RS-485/RS-422 Transceiver (Half Duplex, 500 kbps)
    ADM4851

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  3. ADM4854
    Production
    Product
    RS-485 and RS-422
    5 V, ⅛ Load, Slew-Rate Limited, RS-485/RS-422 Transceiver (Full Duplex, 115 kbps)
    ADM4854

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  4. ADM4852
    Production
    Product
    RS-485 and RS-422
    5 V, ⅛ Load, Slew-Rate Limited, RS-485/RS-422 Transceiver (Half Duplex, 2.5 Mbps)
    ADM4852

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  5. ADM4855
    Production
    Product
    RS-485 and RS-422
    5 V, ⅛ Load, Slew-Rate Limited, RS-485/RS-422 Transceiver (Full Duplex, 500 kbps)
    ADM4855

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  6. ADM483
    Production
    Product
    RS-485 and RS-422
    5 V, Slew-Rate Limited, Low Power, 250 kbps, Half Duplex RS-485/RS-422 Transceiver
    ADM483

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  7. ADM485E
    Production
    Product
    RS-485 and RS-422
    5 V, ±15 kV ESD Protected, Half Duplex RS-485/RS-422 Transceiver (2.5 Mbps)
    ADM485E

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  8. ADM4856
    Production
    Product
    RS-485 and RS-422
    5 V, ⅛ Load, Slew-Rate Limited, RS-485/RS-422 Transceiver (Full Duplex, 2.5 Mbps)
    ADM4856

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  9. ADM4850
    Production
    Product
    RS-485 and RS-422
    5 V, ⅛ Load, Slew-Rate Limited, RS-485/RS-422 Transceiver (Half Duplex, 115 kbps)
    ADM4850

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  10. ADM485
    Production
    Product
    RS-485 and RS-422
    5 V, Low Power, 5 Mbps, Half Duplex EIA RS-485 Transceiver
    ADM485

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Results on EngineerZone

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    1. The internal resistance values of ADM4850ARZ

      Forum Thread
      Answered
      Interface and Isolation
      09 June, 2014
      Hi Sir, Here is a question from my customer. 'How much is internal resistance values of ADM4850ARZ? Please give us the detail spec of resistance between pins 5-6 and between 5-7.' I think the associated information is mentioned via ADM4850 datasheet: Device Input Resistance to GND: 220Kohm (TYP …
      RS-232 / RS-422 / RS-485 / RS-562adm4850RS-485 and RS-422

    2. RE: The internal resistance values of ADM4850ARZ

      Forum Reply
      Interface and Isolation
      12 June, 2014
      Hi Conal, Well noted with many thaks.

    3. RE: The internal resistance values of ADM4850ARZ

      Forum Reply
      Interface and Isolation
      09 June, 2014
      Hi Jane, The relevant specification in the datasheet for this is "Input Resistance (A, B)" and this is specified as a minimum of 96 kOhm. So the customer's measured data is well in excess of the minimum and within specifications. A standard RS-485 receiver can be as low …

    4. ADM485 & ADM3485 combination problem

      Forum Thread
      Answered
      Interface and Isolation
      14 May, 2015
      … by placing pair of resistors (AN-960.pdf, page 6 'Open Fail-Safe'), how one should calculate R1 & R2 when -two PCBs under +5V PWR (ADM485ARZ), -three PCBs under +3.3V PWR (ADM3485ARZ), are connected to cable? And are there AD ICs for 3.3V and for 5V, which may …
      RS-232 / RS-422 / RS-485 / RS-562ADM3485adm485RS-485 and RS-422

    5. ESD protection level

      Docs & FAQs
      Interface and Isolation
      Q The device datasheet has no numerical value of ESD protection level. Can you please specify what ESD starndards are applicable for the ADM4852ARZ and what pins are protected? A You could find the ESD Class in the reliability report for the part. (in 99% of the cases) You could …
      general

    6. RE: ADM485 & ADM3485 combination problem

      Forum Reply
      Interface and Isolation
      14 May, 2015
      Hi Vadim, What failures are you seeing in data exchanges? Missing bits? Missing start bit only? Are you seeing errors in data exchanges with 5 devices connected to the cable? [ two PCBs +5V PWR (ADM485ARZ),and three PCBs +3.3V PWR (ADM3485ARZ)] Are all of the 5 devices terminated with …

    7. Fail safe feature of ADM3485EARZ

      Forum Thread
      Answered
      Interface and Isolation
      24 June, 2019
      Hi We would like to confirm the Fail safe feature of ADM3485EARZ. and have two questions as below 1 In the data sheet of ADM34858EARZ, it is with fail-safe feature. But it do not present the voltage range of fail-safe. We see AN-960(Implementation Guide) shows …

    8. ESD protection for AMD4850ARMZ

      Forum Thread
      Answered
      Interface and Isolation
      27 August, 2015
      Hi, I don't see any ESD specifications for AMD4850ARMZ. Is there any ESD protection available for this IC or do i need to use an external ESD protection diodes to use this? Regards, Akhil

    9. RE: Fail safe feature of ADM3485EARZ

      Forum Reply
      Interface and Isolation
      07 July, 2019
      Hi Wallace, The Diode has large current rating which would be over design( the DC bias current is at several mA level) and you need take the diode voltage drops into consideration when calculating the resistors value, the bias resistors can limit the max. current well. If the front stage …

    10. RE: Fail safe feature of ADM3485EARZ

      Forum Reply
      Interface and Isolation
      03 July, 2019
      Hi Neil We have two question as below 1. In original design, Pull high resistor is connected to VDD33(Main chip power) We plan change to connect with 5V and series a DIODE(100V 200mA). The purpose of DIODE is to block the DC current form the pull high …