LTC1480 Datasheet | Linear Technology

LTC1480 3.3V Ultra-Low Power RS485 Transceiver Features s s s s s DESCRIPTIO s s s s s s s 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 ±10k V on Receiver Inputs and Driver Outputs - 7V to 12V mon-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 patible with the LTC485 The LTC®1480 is an ultra-low power differential line transceiver which provides full RS485 patibility while operating from a single 3.3V supply. It is designed for data transmission standard RS485 applications with extended mon-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. The driver and receiver feature three-state outputs, with the driver outputs maintaining high impedance over the entire mon-mode range. Excessive power dissipation caused by bus contention or faults is prevented by a thermal shutdown circuit which forces the driver outputs into a high impedance state. The receiver has a fail-safe feature which guarantees a high output state when the inputs are left open. I/O pins are protected against multiple ESD strikes of up to ±10k V. The LTC1480 is fully specified over the mercial and extended industrial temperature range. The LTC1480 is available in 8-pin SO and DIP packages. , LTC and LT are registered trademarks of Linear Technology Corporation. APPLICATI s s s Battery-Powered...