MAX22502E

PRODUCTION

100Mbps Full-Duplex RS-485/RS-422 Transceiver for Long Cables

Industry's Fastest RS-485 Transceivers with Pre-Emphasis Improve Robust Communications with Longer Cables

Data Sheet (Rev. 1) Product Selection Table
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Overview

  • High-Speed Operation Over Long Distances
    • Up to 100Mbps Data Rate
    • Integrated Preemphasis Extends Cable Length
    • High Receiver Sensitivity
    • Wide Receiver Bandwidth
    • Symmetrical Receiver Thresholds
  • Integrated Protection Increases Robustness
    • -15V to +15V Common Mode Range
    • ±15kV ESD Protection (Human Body Model)
    • ±7kV IEC61000-4-2 Air-Gap ESD Protection
    • ±6kV IEC61000-4-2 Contact Discharge ESD Protection
    • Driver Outputs are Short-Circuit Protected
  • Flexibility for Many Different Applications
    • 3V to 5.5V Supply Range
    • Low Voltage Logic Supply Down to 1.6V
    • Low 5µA (max) Shutdown Current
    • Available in 12-pin TDFN (3mm x 3mm) Package
    • -40°C to +125°C Operating Temperature Range

The MAX22502E full-duplex, ESD-protected, RS-485/RS-422 transceiver is optimized for high-speed (up to 100Mbps) communication over long cables.This transceiver features larger receiver hysteresis for high noise rejection and improved signal integrity. Integrated preemphasis circuitry extends the distance, and increases the data rate, of reliable communication by reducing inter-symbol interference (ISI) caused by long cables when supplied with 5V. Integrated hot-swap protection and a fail-safe receiver ensure a logic-high on the receiver output when input signals are shorted or open for longer than 10µs (typ).

The MAX22502E is available in a 12-pin TDFN-EP (3mm x 3mm) package and operates over the -40°C to +125°C ambient temperature range.

Design Solution: RS-485: Overcome the Speed vs. Distance Challenge ›

Applications

  • Backplane Busses
  • Encoder Interfaces
  • Field Bus Networks
  • Industrial Control Systems
  • Motion Control
MAX22502E
100Mbps Full-Duplex RS-485/RS-422 Transceiver for Long Cables
MAX22502E: Simplified Block Diagram
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Documentation

Data Sheet 1

Application Note 1

Design Note 1

Technical Articles 1

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Hardware Ecosystem

Parts Product Life Cycle Description
Interface Transceivers & Isolators 2
MAX22500E
PRODUCTION 100Mbps Half-Duplex RS-485/RS-422 Transceivers for Long Cables
MAX22501E
PRODUCTION 100Mbps Half-Duplex RS-485/RS-422 Transceivers for Long Cables
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Tools & Simulations

IBIS Model 1

Evaluation Kits

MAX22502EEVKIT

Evaluation Kit for the MAX22502E/MAX22503E

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Features and Benefits

  • Configurable to Operate from a Single 3V to 5V Supply
  • Separate Logic Supply (VL) to Interface with Logic Signals as Low as 1.6V
  • Terminal Block and RJ45 Connectors for Easy RS-485/RS-422 Evaluation
  • Fully Assembled and Tested

Product Details

The MAX22502E evaluation kit (EV kit) is a fully assembled and tested PCB that demonstrates the functionality of the MAX22502E and the MAX22503E full-duplex high speed RS-485/RS-422 transceiver. The EV kit includes on-board termination for easy point-to-point evaluation. The EV kit is assembled using MAX22502E in a 12-pin TDFN package, but also provides equivalent functional evaluation for the MAX22503E, which is offered in a 14-pin SOIC package.

Applications

  • Backplane Busses
  • Encoder Interfaces
  • Field Bus Networks
  • Industrial Control Systems
  • Motion Control
MAX22502EEVKIT
Evaluation Kit for the MAX22502E/MAX22503E

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