LTC487 Datasheet | Linear Technology

LTC487 Quad Low Power RS485 Driver Features n Very Low Power: ICC = 110µA Typ n Designed for RS485 or RS422 Applications n Single 5V Supply n - 7V to 12V Bus mon Mode Range Permits ±7V GND Difference Between Devices on the Bus n Thermal Shutdown Protection n Power-Up/Down Glitch-Free Driver Outputs Permit Live Insertion/Removal of Package n Driver Maintains High Impedance in Three-State or with the Power Off n 28ns Typical Driver Propagation Delays with 5ns Skew n Pin patible with the SN75174, DS96174, µA96174, and DS96F174 Applications n Low Power RS485/RS422 Drivers n Level Translator Description The LTC®487 is a low power differential bus/line driver designed for multipoint data transmission standard RS485 applications with extended mon mode range (- 7V to 12V). It also meets RS422 requirements. The CMOS design offers significant power savings over its bipolar counterpart without sacrificing ruggedness against overload or ESD damage. The driver Features 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. Both AC and DC specifications are guaranteed from 0°C to 70°C (mercial), - 40°C to 85°C (Industrial) and over the 4.75V to 5.25V supply voltage range. L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. Typical Application EN 12 4 2 DI 1 DRIVER 1/4 LTC487 120Ω 120Ω 4000 FT BELDEN 9841 EN 12 4 2 RECEIVER 3 RO 1 1/4 LTC489 LTC487 TA01 CABLE LENGTH (FT) RS485 Cable Length Specification-...