DESCRIPTION
The LTC®1480 is an ultra-low power differential line transceiver which provides full RS485 compatibility while operating from a single 3.3V supply. It is designed for data transmission standard RS485 applications with extended common-mode range (12V to –7V). It also meets the requirements of RS422 and features high speed operation up to 2.5Mb/s. The CMOS design offers significant power savings without sacrificing ruggedness against overload or ESD damage. Typical quiescent current is only 300µA while operating and 1µA in shutdown.

FEATURES
■ True RS485 from a Single 3.3V Supply
■ Low Power: ICC = 500µA Max with Driver Disabled
■ ICC = 600µA Max with Driver Enabled, No Load
■ 1µA Quiescent in Shutdown Mode
■ ESD Protection to ±10kV on Receiver Inputs and Driver Outputs
■ –7V to 12V Common-Mode Range Permits ±7V Ground Difference Between Devices on the Data Line
■ Thermal Shutdown Protection
■ Power Up/Down Glitch-Free Driver Outputs Permit Live Insertion or Removal of Transceiver
■ Driver Maintains High Impedance in Three-State or with the Power Off
■ Up to 32 Transceivers on the Bus
■ 50ns Typical Driver Propagation Delays with 10ns Skew
■ Pin Compatible with the LTC485

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