Interface & Connectivity

Overview

Description

The ISL32705E is a galvanically isolated, full-duplex differential bus transceiver, designed for bidirectional data transmission meeting the RS-485 and RS-422 standards for balanced communication. All bus terminals are protected against ±7kV ESD strikes without latch-up. The device uses Giant Magnetoresistance (GMR) as isolation technology. A unique ceramic/polymer composite barrier provides excellent isolation and nearly unlimited barrier life. The part is available in a 16 Ld wide-body SOIC package providing true 8mm creepage distance. The ISL32705E delivers a minimum of 1. 5V into a 54Ω differential load for excellent data integrity over long cable lengths. 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 feature a “fail-safe if open” design, ensuring a logic high R-output if A/B are floating.

Features

  • 4Mbps data rate
  • 2.5kVRMS isolation/600VRMS working voltage
  • 3V to 5V power supplies
  • Drives up to 44 devices on an isolated bus
  • 50kV/μs (typical), 30kV/μs (minimum) common-mode transient immunity
  • 44,000 year barrier life
  • 7kV ESD protection
  • Low EMC footprint
  • Thermal shutdown protection
  • -40°C to +85°C temperature range
  • Meets or exceeds ANSI RS-485
  • 0.3" true 8mm 16 Ld SOIC package
  • UL 1577 recognized
  • VDE V 0884-10 certified

Applications

Documentation

Title Type Date
PDF951 KB
Datasheet
PDF207 KB
Application Note
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Application Note
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Application Note
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Application Note
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Application Note
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Application Note
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Application Note
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Application Note
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Application Note
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Application Note
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Application Note
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Application Note
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Application Note
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Application Note
PDF2.72 MB日本語
Brochure
PDF603 KB
End Of Life Notice
PDF632 KB
Manual - Development Tools
PDF156 KB
Other
PDF253 KB
Other
PDF500 KB
Other
PDF208 KB
Price Increase Notice
PDF438 KB
Report
PDF188 KB
Technical Brief
PDF300 KB
Technical Brief

Design & Development

Software & Tools

Software Downloads

Title Type Date
PDF603 KB
End Of Life Notice
ZIP269 KB
PCB Design Files

Models