XR33035

XR33032/35/38 WIDE SUPPLY 18V TOLERANT RS-485/RS-422 TRANSCEIVERS FEBRUARY 2014 REV. 1.0.0 GENERAL DESCRIPTION FEATURES The XR33032/35/38 family of high performance half duplex RS-485 transceivers are optimized to operate over a wide range of supply voltage, from +2.8V to +5.5V. The analog bus pins can withstand direct shorts up to ±18V, and are protected against ESD events up to ±15kV. In an isolated application it may be more efficient to use a remote power supply rather than generating an isolated supply at every node. The XR33032/35/38 transceivers can operate with more than 2V IR drop in the cable when utilizing a remote 5V power supply. The transceivers draw less than 600µA, and typically only 300µA when idling with the receivers active. The receivers include full fail-safe circuitry, guaranteeing a logic-high receiver output when the receiver inputs are open, shorted, or undriven. The receiver input impedance is 96k (1/8 unit load), allowing up to 256 devices on the bus while preserving the full signal margin.  +2.8V to +5.5V Operating Range  ±18V Fault Tolerance on Analog Bus pins  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  300µA Idle Current, 40nA 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  D...