• Part: LTC1481
  • Description: Ultra-Low Power RS485 Transceiver
  • Manufacturer: Linear Technology
  • Size: 159.71 KB
Download LTC1481 Datasheet PDF
Linear Technology
LTC1481
LTC1481 is Ultra-Low Power RS485 Transceiver manufactured by Linear Technology.
Features s Low Power: ICC = 120µA Max with Driver Disabled s Drivers/Receivers Have ±10k V ESD Protection s 1µA Quiescent Current in Shutdown Mode s High Speed: Up to 2.5Mbits/s Data Rate s ICC = 500µA Max with Driver Enabled, No Load s Single 5V Supply s - 7V to 12V mon Mode Range Permits ±7V Ground Difference Between Devices on the Data Line s Thermal Shutdown Protection s Power Up/Down Glitch-Free Driver Outputs Permit Live Insertion or Removal of Transceiver s Driver Maintains High Impedance in Three-State or with the Power Off s Up to 32 Transceivers on the Bus s 30ns Typical Driver Propagation Delays with 5ns Skew s Pin patible with the LTC485 U APPLICATIO S s Battery-Powered RS485/RS422 Applications s Low Power RS485/RS422 Transceiver s Level Translator Ultralow Power RS485 Transceiver with Shutdown DESCRIPTIO The LTC®1481 is an ultralow power differential line transceiver designed for data transmission standard RS485 applications. It will also meet the requirements of RS422. The CMOS design offers significant power savings over its bipolar counterparts without sacrificing ruggedness against overload or ESD damage. Typical quiescent current is only 80µA while operating and less than 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. The LTC1481 is fully specified over the mercial and extended industrial temperature range and is available in 8-pin PDIP and SO packages. , LTC and LT are registered trademarks of Linear Technology Corporation. TYPICAL APPLICATIO RO1 VCC1 RE1 Rt DE1 DI1 GND1 Rt RO2 VCC2 RE2 DE2 DI2 GND2 - TA01 SUPPLY...