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Home » NEWEST Products » New by Manufacturer » Exar » XR308x RS-485/RS-422 +5V Transceivers - Exar
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Exar XR308x RS-485/RS-422 +5V Transceivers

Exar XR308x RS-485/RS-422 +5V Transceivers

Exar's XR308x RS-485/RS-422 +5V Transceivers are a family of high reliability RS-485/422 transceivers designed for harsh industrial environments with enhanced fault and voltage protection. Consisting of nine devices, the family supports data rates up to 20Mbps in either full or half duplex configurations, and is intended for use in remote utility metering, AC and DC motor drives, building automation, security systems, process control, and other industrial automation applications. The XR308x family also offers extremely low power consumption which makes them ideal for high voltage isolated RS-485 applications by facilitating a smaller and lower cost transformer in the isolation power supply.

Features
  • 40% Higher SNR (Signal-to-Noise Ratio) compared to other RS-485 devices (2.1V vs. 1.5V)
  • ±18V Fault Tolerance on Analog Bus pins
  • 2.1V Driver Output (Profibus Compliant)
  • Robust ESD (ElectroStatic Discharge) Protection:
  • ±15kV IEC 61000-4-2 Air Gap Discharge
  • ± 8kV IEC 61000-4-2 Contact Discharge
  • ±15kV Human Body Model
  • ± 4kV Human Body Model on non-bus pins
  • +4.5V to +5.5V Operation (5V ± 10%)
  • 300μA Idle Current, 1nA Shutdown Current
  • Enhanced Receiver Fail-Safe Protection for Open, Shorted, or Terminated but Idle Data Lines
  • Hot-Swap Glitch Protection on DE and RE Pins
  • Driver Short Circuit Current Limit and Thermal Shutdown for Overload Protection
  • 1/8th Unit Load Allows up to 256 Devices on Bus
  • Industry Standard 8 and 14 NSOIC Packages
Applications
  • Motor Control
  • Security Systems
  • Building and Process Automation
  • Remote Utility Meter Reading
  • Energy Monitoring and Control
  • Long or Unterminated Transmission Lines
  • Profibus DP Fieldbus Networks
Half Duplex Block Diagram (XR3082X, XR3085X, XR3088X)
Half Duplex Block Diagram
Full Duplex Block Diagram (XR3080X, XR3081X, XR3083X, XR3084X, XR3086X, XR3087X)
Full Duplex Block Diagram
  • Exar