1. Products
  2. Interface and Isolation
  3. RS-232 / RS-422 / RS-485 / RS-562
  4. RS-485 and RS-422
  5. MAX3483E

Data Sheet Rev. 1
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Overview

Features and Benefits

  • ESD Protection for RS-485 I/O Pins
    • ±15kV-Human Body Model
    • ±8kV-IEC 1000-4-2, Contact Discharge
    • ±15kV-IEC 1000-4-2, Air-Gap Discharge
  • Operate from a Single +3.3V Supply-No Charge Pump Required
  • Interoperable with +5V Logic
  • Guaranteed 12Mbps Data Rate (MAX3485E/MAX3490E/MAX3491E)
  • Slew-Rate Limited for Errorless Data Transmission (MAX3483E/MAX3488E)
  • 2nA Low-Current Shutdown Mode (MAX3483E/MAX3485E/MAX3486E/MAX3491E)
  • -7V to +12V Common-Mode Input Voltage Range
  • Full-Duplex and Half-Duplex Versions Available
  • Industry-Standard 75176 Pinout (MAX3483E/MAX3485E/MAX3486E)
  • Current-Limiting and Thermal Shutdown for Driver Overload Protection

Product Details

Devices in the MAX3483E family (MAX3483E/MAX3485E/MAX3486E/MAX3488E/MAX3490E/MAX3491E) are ±15kV ESD-protected, +3.3V, low-power transceivers for RS-485 and RS-422 communications. Each device contains one driver and one receiver. The MAX3483E and MAX3488E feature slew-rate-limited drivers that minimize EMI and reduce reflections caused by improperly terminated cables, allowing error-free data transmission at data rates up to 250kbps. The partially slew-rate-limited MAX3486E transmits up to 2.5Mbps. The MAX3485E, MAX3490E, and MAX3491E transmit at up to 12Mbps.

All devices feature enhanced electrostatic discharge (ESD) protection. All transmitter outputs and receiver inputs are protected to ±15kV using IEC 1000-4-2 Air-Gap Discharge, ±8kV using IEC 1000-4-2 Contact Discharge, and ±15kV using the Human Body Model.

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

The MAX3488E, MAX3490E, and MAX3491E feature full-duplex communication, while the MAX3483E, MAX3485E, and MAX3486E are designed for half-duplex communication.

Applications

  • Industrial Control Local Area Networks
  • Integrated Services Digital Networks
  • Packet Switching
  • Telecommunications
  • Transceivers for EMI-Sensitive Applications

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At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.

Documentation & Resources

  • View All (8)
  • Data Sheets (1)
  • Reliability Data (1)
  • Technical Articles (6)
    • Document Type

    Tools & Simulations

    IBIS Models

    Design Resources

    ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well.  "Zero defects" for shipped products is always our goal.View our quality and reliability program and certifications for more information.

    Part Number Material Declaration Reliability Data Pin/Package Drawing CAD Symbols, Footprints & 3D Models
    MAX3483ECPA+ Material Declaration Reliability Data 8-PDIP-300_MIL
    MAX3483ECSA+ Material Declaration Reliability Data Small-Outline IC, Narrow (0.15in)
    MAX3483ECSA+T Material Declaration Reliability Data Small-Outline IC, Narrow (0.15in)
    MAX3483EEPA+ Material Declaration Reliability Data 8-PDIP-300_MIL
    MAX3483EESA+ Material Declaration Reliability Data Small-Outline IC, Narrow (0.15in)
    MAX3483EESA+T Material Declaration Reliability Data Small-Outline IC, Narrow (0.15in)
    Wafer Fabrication Data MAX3483E Reliability Data

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    • MAX3483ECSA+ Production
    • MAX3483ECSA+T Production
    • MAX3483EESA+ Production
    • MAX3483EESA+T Production

    Support & Discussions

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