The ISL32741E is a galvanically isolated, high-speed differential bus transceiver, designed for bidirectional data communication on balanced transmission lines. The device uses giant magnetoresistance (GMR) as its isolation technology. The part is available in a 16 Ld SOICW package with true 8mm creepage distance. The ISL32741E is PROFIBUS compliant, including the rigorous PROFIBUS differential output voltage specifications. A unique ceramic/polymer composite barrier provides 6kV reinforced isolation and 44,000 years of barrier life. The device is compatible with 3V and 5V input supplies, allowing an interface to standard microcontrollers without additional level shifting. Current limiting and thermal shutdown features protect against output short circuits and bus contention that may cause excessive power dissipation. Receiver inputs are a full fail-safe design, ensuring a logic high R-output if A/B are floating or shorted.

Features

  • 40Mbps data rate
  • 6kVRMS isolation/1000VRMS working voltage
  • 12.8kV surge immunity
  • 3V to 5V power supplies
  • 20ns propagation delay
  • 5ns pulse skew
  • 50kV/μs (typical), 30kV/μs (minimum) common-mode transient immunity
  • 15kV ESD protection
  • Low EMC footprint
  • Thermal shutdown protection
  • Temperature ranges available
    • -40 °C to +85 °C (EIBZ)
    • -40 °C to +125 °C (EFBZ)
  • Meets or exceeds ANSI RS-485 and ISO 8482:1987(E)
  • PROFIBUS compliant
  • 0.3" true 8mm 16 Ld SOICW package
  • UL 1577 recognized
  • VDE V 0884-10 certified

Applications

  • PROFIBUS-DP and RS-485 networks
  • Factory automation
  • Building environmental control systems
  • Industrial/Process control networks
  • Equipment covered under IEC 61010-1 Edition 3

Product Options

Part Number Part Status Pkg. Type Carrier Type MOQ Buy Sample
Active SOICW Tube 46
Availability
Active SOICW Reel 1000
Availability
Active SOICW Reel 250
Availability
Active SOICW Tube 46
Availability
Active SOICW Reel 1000
Availability
Active SOICW Reel 250
Availability

Documentation & Downloads

Title language Type Format File Size Date
Datasheets & Errata
ISL32741E Datasheet Datasheet PDF 890 KB
Application Notes & White Papers
R15AN0002: RS-485 Transient Protection in Industrial DC-Supply Buses Application Note PDF 178 KB
AN1991: Isolating RS-485 Interfaces with High-Speed Digital Optocouplers Application Note PDF 513 KB
Boost PROFIBUS RS-485 Robustness with GMR Isolation White Paper PDF 307 KB
AN1990: RS-485 Transceivers in J1708 Physical Layer Applications of Heavy Duty Vehicles Application Note PDF 826 KB
AN1988: Isolated RS-485 Repeaters, the Backbone of Industrial Long Haul Networks Application Note PDF 769 KB
AN1987: RS-485 External Fail-Safe Biasing for Isolated Long Haul Buses Application Note PDF 443 KB
AN1986: External Fail-Safe Biasing of RS-485 Networks Application Note PDF 582 KB
AN1985: Transient Protection for the Standard RS-485 Transceiver: ISL3152E Application Note PDF 335 KB
AN1989: RS-422 vs RS-485: Similarities and Key Differences Application Note PDF 440 KB
AN1980: Ground Potential Differences: Origin and Remedies Application Note PDF 375 KB
AN1978: Surge Protection for Intersil's Standard RS-485 Transceivers Application Note PDF 369 KB
AN1976: Important Transient Immunity Tests for RS-485 Networks Application Note PDF 338 KB
AN1979: Surge Protection simplified with Intersil's Overvoltage Protected (OVP) Transceivers Application Note PDF 500 KB
AN1977: Transient Voltage Suppressors: Operation and Features Application Note PDF 365 KB
AN1973: GMR Isolators in IEC61010-1 Edition 3 Systems Application Note PDF 213 KB
AN1971: GMR In Isolation Application Note PDF 218 KB
AN1972: Giant-Magneto-Resistance as Digital Isolation Technology Application Note PDF 296 KB
Other
Analog ICs Brochure 日本語 Brochure PDF 4.20 MB
PIN19028 - Q3 Cy 19 Price Increase Notice Price Increase Notice PDF 208 KB
TB506: Functional Principles of RS-485 Drivers and Receivers Other PDF 156 KB
TB509: Detecting Bus Signals Correctly with Failsafe Biased RS-485 Receivers Other PDF 240 KB
TB511: The Unit Load Concept Other PDF 253 KB

Boards & Kits

Part Number Title Type Company
ISL32741EVAL1Z PROFIBUS 6kV VDE-Reinforced Isolated RS-485 Transceiver Evaluation Board Evaluation Renesas