SP3082E/ SP3083E/ SP3084E/ SP3085E/ SP3088E Data Sheet Advanced-Failsafe RS-485 / RS-422 Transceivers 1/8th Unit Load, Slew-Rate Limited, 15kV ESD-Protected General Description Features The SP3082E-SP3088E family of RS-485 devices are 5.0V single supply operation designed for reliable, bidirectional communication on multipoint bus transmission lines. Each device contains one Receiver failsafe on open, shorted or terminated lines differential driver and one differential receiver. The SP3082E, 1/8th Unit Load, 256 transceivers on bus SP3085E and SP3088E are half-duplex devices other part numbers are full-duplex. All devices comply with TIA/EIA-485 Robust ESD protection for RS-485 pins and TIA/EIA-422 standards. Lead-free and RoHS compliant 15kV Air-Gap Discharge packages are available for all models. 15kV Human Body Model These devices are ruggedized for use in harsh operating 8kV Contact Discharge conditions over the entire common-mode voltage range from Controlled driver slew rates -7V to +12V. Receivers are specially designed to fail-safe to a logic high output state if the inputs are left un-driven or 115kbps, Low EMI (SP3082E) shorted. All RS-485 bus-pins are protected against severe 500kbps, Low EMI (SP3083E, SP3084E, SP3085E) ESD events up to 15kV (Air-Gap and Human Body Model) High Speed, 20Mbps (SP3088E) and up to 8kV Contact Discharge (IEC 61000-4-2). Drivers Hot Swap glitch protection on control inputs are protected from excess current flow caused by bus contention or output short-circuits by both an internal current Driver short circuit current limit and thermal shutdown for limit and a thermal-overload shutdown. Devices are rated for overload protection industrial (-40 to +85C) operating temperatures. Receivers have exceptionally high input impedance, which places only Ultra-low 400A quiescent current 1/8th the standard load on a shared bus. Up to 256 1A shutdown mode (except SP3084E) transceivers may coexist while preserving full signal margin. Industry standard package footprints 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 Applications driver and receiver are disabled. All outputs maintain high impedance in shutdown or when powered-off. Motor Control Building Automation Security Systems Remote Meter Reading Long or un-terminated transmission lines Ordering Information - page 27 Product Selector Guide Table 1: Product Selector Guide Data Rate Receiver & Transceivers Pin-Compatible Part Number Duplex Shutdown Footprint (Mbps) Driver Enable on Bus Upgrade from: SP3082E Half 0.115 Yes Yes 256 SN75176 SP483, MAX3082 SP3083E Full 0.5 Yes Yes 256 SN75180 MAX3083 SP3084E Full 0.5 No No 256 SN75179 MAX3084 SP3085E Half 0.5 Yes Yes 256 SN75176 MAX3085 SP3088E Half 20 Yes Yes 256 SN75176 SP1481, MAX3088 www.maxlinear.com Rev 1.0.2 SP3082E/ SP3083E/ SP3084E/ SP3085E/ SP3088E Data Sheet Revision History Revision History Document No. Release Date Change Description M 2/22/07 Legacy Sipex Datasheet. 1.0.0 06/23/09 Convert to Exar format and change revision to 1.0.0. 1.0.1 08/26/11 Correct type error to Vcc range on page 4 from Vcc = 5.0V +/-5% to Vcc = 5.0V +/-10%. Add +/ -65V transient over voltage tolerance to ABS Maximum Ratings and add Figure 11 test circuit. 1.0.2 8/29/19 Update to MaxLinear format, update Ordering Information. Move Pin Information section to just before Detailed Description section, ESD Ratings to below Absolute Maximum Ratings section, and Product Selector Guide to page 1. Correct Half Duplex Network Typical Application. Removed obsolete SP3080E, SP3081E, SP3086E and SP3087E. 8/29/19 Rev 1.0.2 ii