ADM483E:  ±15 kV ESD Protected, Slew Rate Limited, 5 V, RS-485 Transceiver

The ADM483E is a 5 V, low power data transceiver with ±15 kV ESD protection suitable for half-duplex communication on multipoint bus transmission lines. The ADM483E is designed for balanced data ...More

ADM483E:  ±15 kV ESD Protected, Slew Rate Limited, 5 V, RS-485 Transceiver

Product Description

The ADM483E is a 5 V, low power data transceiver with ±15 kV ESD protection suitable for half-duplex communication on multipoint bus transmission lines. The ADM483E is designed for balanced data transmission and complies with TIA/EIA Standards RS-485 and RS-422, which allow up to 32 transceivers on a bus.

The ADM483E has a low current shutdown mode in which it consumes only 0.1 μA.

Because only one driver is enabled at any time, the output of a disabled or power-down driver is three-stated to avoid overloading the bus.

Drivers are short-circuit current-limited and are protected against excessive power dissipation by thermal shutdown circuitry that places their outputs into a high impedance state. The receiver input has a fail-safe feature that guarantees a logic high output if the input is open circuit.

The ADM483E is fully specified over the industrial temperature ranges and is available in 8-lead SOIC_N packages.

Applications

  • Low power RS-485 systems
  • Electrically harsh environments
  • EMI sensitive applications
  • DTE-DCE interface
  • Packet switching
  • Local area networks

    • Data Sheet, Rev. A, 1/08

    Features

    • ±15 kV ESD protection
    • 250 kbps data rate
    • Reduced slew rate for low EM interference
    • Single 5 V ± 10% supply
    • −7 V to +12 V bus common-mode range
    • Up to 32 nodes on the bus
    • Receiver open-circuit, fail-safe design
    • Short-circuit protection
    • 36 μA supply current
    • 0.1 μA shutdown current

    Diagrams

    ADM483E Diagram
    Functional Block Diagram for ADM483E

    Specifications

    Protocols RS-422,RS-485
    Pwr Supply (Vnom) +5
    #Tx 1
    # Rx 1
    Data Rate 250kbps
    Low Power Shutdown Yes
    Operating Temp Range -40 to +85

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