SP3085EEN-L/TR

The SP3082E - SP3088E family of RS - 485 devices are designed for reliable, bidirectional communication on multipoint bus transmission lines. Each device contains one differential driver and one differential receiver. The SP3082E, SP3085E and SP3088E are half - duplex devices; other part numbers are full - duplex. All devices comply with TIA/EIA - 485 and TIA/EIA - 422 standards. Lead - free and RoHS compliant packages are available for all models. These devices are ruggedized for use in harsh operating conditions over the entire common - mode voltage range from - 7V to +12V. Receivers are specially designed to fail - safe to a logic high output state if the inputs are left un - driven or shorted. All RS - 485 bus - pins are protected against severe ESD events up to ±15kV Air - Gap and Human Body Model) and up to ±8kV Contact Discharge (IEC 61000 - 4 - 2). Drivers are protected from excess current flow caused by bus contention or output short - circuits by both an internal current limit and a thermal - overload shutdown. Devices are rated for industrial (- 40 to +85℃ operating temperatures. Receivers have exceptionally high input impedance, which places only 1/8th the standard load on a shared bus. Up to 256 transceivers may coexist while preserving full signal margin. All devices operate from a single 5.0V power supply and draw negligible quiescent power. All versions except the SP3084E may independently enable and disable their driver and receiver and enter a low power shutdown mode if both driver and receiver are disabled. All outputs maintain high impedance in shutdown or when powered - off.

Applications

• Motor Control
• Building Automation
• Security Systems
• Remote Meter Reading
• Long or un - terminated transmission lines

Key features

• 5.0V single supply operation
• Receiver failsafe on open, shorted or terminated lines
• 1/8th Unit Load, 256 transceivers on bus
• Robust ESD protection for RS - 485 pins ±15kV Air - Gap Discharge ±15kV Human Body Model ±8kV Contact Discharge
• Controlled driver slew rates
• 115kbps, Low EMI (SP3082E)
• 500kbps, Low EMI (SP3083E, SP3084E, SP3085E)
• High Speed, 20Mbps (SP3088E)
• Hot Swap glitch protection on control inputs
• Driver short circuit current limit and thermal shutdown for overload protection
• Ultra - low 400μA quiescent current
• 1A shutdown mode (except SP3084E)
• Industry standard package footprints