ADM2484E 5 kV Signal Isolated, ESD Protected, 500 kbps, Full/Half Duplex RS-485 Transceiver

Applications

The ADM2484E is an isolated data transceiver with ±15 kV ESD protection suitable for high speed, half- or full-duplex communication on multipoint transmission lines. For half-duplex operation, the transmitter outputs and receiver inputs share the same transmission line. Transmitter Output Pin Y links externally to Receiver Input Pin A, and Transmitter Output Pin Z links externally to Receiver Input Pin B.

Designed for balanced transmission lines, the ADM2484E complies with ANSI TIA/EIA RS-485-A-1998 and ISO 8482: 1987(E). The device employs Analog Devices, Inc., iCoupler® technology to combine a 3-channel isolator, a three-state differential line driver, and a differential input receiver into a single package.

The differential transmitter outputs and receiver inputs feature electrostatic discharge circuitry that provides protection up to ±15 kV using the human body model (HBM). The logic side of the device can be powered with either a 5 V or a 3.3 V supply, whereas the bus side requires an isolated 3.3 V supply.

The device has current-limiting and thermal shutdown features to protect against output short circuits and situations where bus contention causes excessive power dissipation.

Features and Benefits
  • Isolated, RS-485/RS-422 transceiver, configurable as half- or full-duplex
  • ±15 kV ESD protection on RS-485 input/output pins
  • 500 kbps data rate
  • Complies with ANSI TIA/EIA RS-485-A-1998 and ISO 8482: 1987(E)
  • Suitable for 5 V or 3.3 V operation (VDD1)
  • High common-mode transient immunity: >25 kV/μs
  • True fail-safe receiver inputs
  • 256 nodes on the bus
  • Thermal shutdown protection
  • Safety and regulatory approvals
    • UL recognition 5000 V rms isolation voltage for 1 minute per UL1577
    • VDE certificate of conformity DIN V VDE V 0884-10 (VDE V 0884-10): 2006-12 Reinforced insulation, VIORM = 849 VPEAK
    • CSA Component Acceptance Notice 5A IEC 60950-1: 380 V rms (reinforced)
  • UL recognition
    • 5000 V rms isolation voltage for 1 minute per UL1577
  • 5000 V rms isolation voltage for 1 minute per UL1577
  • VDE certificate of conformity
    • DIN V VDE V 0884-10 (VDE V 0884-10): 2006-12
    • Reinforced insulation, VIORM = 849 VPEAK
  • DIN V VDE V 0884-10 (VDE V 0884-10): 2006-12
  • Reinforced insulation, VIORM = 849 VPEAK
  • CSA Component Acceptance Notice 5A
    • IEC 60950-1: 380 V rms (reinforced)
  • IEC 60950-1: 380 V rms (reinforced)
  • Operating temperature range: −40°C to +85°C
  • Wide body, 16-lead SOIC package
  • Interface & Isolation
    Aerospace and Defense
    • Solutions
    Data Sheets
    Documentnote
    ADM2484E: 500 kbps, ESD Protected, Half-/Full-Duplex, Coupler, Isolated RS-485 Transceiver Data Sheet (Rev. F)PDF 442 kB
    Application Notes
    Documentnote
    AN-1179: Junction Temperature Calculation for Analog Devices RS-485/RS-422, CAN, and LVDS/M-LVDS Transceivers (Rev. A)PDF 156.87 K
    AN-1176: Component Footprints and Symbols in the Binary .Bxl File Format (Rev. 0)PDF 671 kB
    AN-960: RS-485/RS-422 Circuit Implementation Guide (Rev. 0)PDF 245 kB
    User Guides
    Documentnote
    UG-301: Evaluation Board for the ADM2484E 5 kV Signal Isolated, ESD Protected, 500 kbps, Half-/Full Duplex, iCoupler, Isolated RS-485 Transceiver (Rev. A)PDF 378.29 K
    Frequently Asked Questions
    Documentnote
    Order Information
    Part NumberPackagePacking QtyTemp RangePrice 100-499Price 1000+RoHS
    ADM2484EBRWZ Production16 ld SOIC - WideOTH 47-40 to 85C3.543.04Y
    ADM2484EBRWZ-REEL7 Production16 ld SOIC - WideREEL 400-40 to 85C3.543.04Y
    Evaluation Boards
    Part NumberDescriptionPriceRoHS
    EVAL-ADM2484EEBZEvaluation Board75Y
    Reference Materials
    ADM2484E: 500 kbps, ESD Protected, Half-/Full-Duplex, Coupler, Isolated RS-485 Transceiver Data Sheet (Rev. F) adm2484e
    AN-1179: Junction Temperature Calculation for Analog Devices RS-485/RS-422, CAN, and LVDS/M-LVDS Transceivers (Rev. A) adn4670
    AN-1176:二进制.Bxl文件格式的元件尺寸和符号 (Rev. 0) adn4670
    AN-1176: Component Footprints and Symbols in the Binary .Bxl File Format (Rev. 0) adn4670
    AN-960: RS-485/RS-422电路实施指南 (Rev. 0) adm2486
    AN-960: RS-485/RS-422 Circuit Implementation Guide (Rev. 0) adm2486
    UG-301: Evaluation Board for the ADM2484E 5 kV Signal Isolated, ESD Protected, 500 kbps, Half-/Full Duplex, iCoupler, Isolated R adm2484e
    数字隔离器产品选型与资源指南 adum1233
    Emerging Energy Applications Solutions Bulletin, Volume 10, Issue 4 ad7656
    Test & Instrumentation Solutions Bulletin, Volume 10, Issue 3 ad7780
    MS-2127: 在太阳能逆变器中利用 i Coupler 数字隔离器进行设计 adum3220
    Inside iCoupler® Technology:ADuM347x PWM Controller and Transformer Driver with ad7400
    NAppkin Note: Lowering the Power of the ADuM524x ad7400