DESCRIPTION
The LTC®1484 is a low power RS485 compatible transceiver. In receiver mode, it offers a fail-safe feature which guarantees a high receiver output state when the inputs are left open, shorted together or terminated with no signal present. No external components are required to ensure the high receiver output state.

FEATURES
■ No Damage or Latchup to ±15kV ESD (Human
   Body Model), IEC-1000-4-2 Level 4 Contact (±8kV)
   and Level 3 (±8kV) Air Gap Specifications
■ Guaranteed High Receiver Output State for Floating,
   Shorted or Terminated Inputs with No Signal
   Present
■ Drives Low Cost Residential Telephone Wires
■ Low Power: ICC = 700µA Max with Driver Disabled
■ ICC = 900µA Max for Driver Enable with No Load
■ 20µA Max Quiescent Current in Shutdown Mode
■ Single 5V Supply
■ –7V to 12V Common Mode Range Permits ±7V
   Ground Difference Between Devices on the Data Line
■ Power Up/Down Glitch-Free Driver Outputs
■ Up to 32 Transceivers on the Bus
■ Pin Compatible with the LTC485
■ Available in 8-Lead MSOP, PDIP and SO Packages

APPLICATIONS
■ Battery-Powered RS485/RS422 Applications
■ Low Power RS485/RS422 Transceiver
■ Level Translator