SP3088E Datasheet | MaxLinear

Description Features The SP3082E-SP3088E family of RS-485 devices are designed for reliable, bidirectional munication 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 ply with TIA/EIA-485 and TIA/EIA-422 standards. Lead-free and Ro HS pliant packages are available for all models. These devices are ruggedized for use in harsh operating conditions over the entire mon-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 ±15k V (Air-Gap and Human Body Model) and up to ±8k V 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 +85ºC) 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. SP3084E obsolete - 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  ±15k V Air-Gap Discharge  ±15k V Human Body Model  ±8k V Contact Discharge - Controlled driver slew rates  115kbps, Low EMI (SP3082E)  500kbps, Low EMI (SP3083E, SP3084E, SP3085E)  High Speed, 20Mbps...