LTC1485 Datasheet | Linear Technology

LTC1485 Differential Bus Transceiver Features s s s DESCRIPTIO s s s s s s s s s ESD Protection over ±10k V Low Power: ICC = 1.8m A Typ 28ns Typical Driver Propagation Delays with 4ns Skew Designed for RS485 or RS422 Applications Single 5V Supply - 7V to 12V Bus mon-Mode Range Permits ±7V Ground Difference Between Devices on the Bus Thermal Shutdown Protection Power-Up/Down Glitch-Free Driver Outputs Driver Maintains High Impedance in Three-State or with the Power Off bined Impedance of a Driver Output and Receiver Allows up to 32 Transceivers on the Bus 60m V Typical Input Hysteresis Pin patible with the SN75176A, DS75176A, and SN75LBC176 The LTC ®1485 is a low power differential bus/line transceiver designed for multipoint data transmission standard RS485 applications with extended mon-mode range (12V to - 7V). It also meets the requirements of RS422. The CMOS with Schottky design offers significant power savings over its bipolar counterpart without sacrificing ruggedness against overload or ESD damage. 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. I/O pins are protected against multiple ESD strikes of over ± 10k V. The receiver has a fail-safe feature which guarantees a high output state when the inputs are left open. Both AC and DC specifications are guaranteed from - 40°C to 85°C and 4.75V to 5.25V supply voltage range. , LTC and LT are registered trademarks of Linear Technology Corporation. APPLICATI s s Low Power RS485/RS422 Transceiver Level Translator TYPICAL APPLICATI DE 3 5V 8 LTC1485 6 6 120Ω 7 5V 8 LTC1485 DRIVER 120Ω 7 4000 FT 24 GAUGE TWISTED PAIR RECEIVER 2 RE DE 3 DRIVER 4 DI RECEIVER 1 RO 2 RE 1485 TA01 LTC1485 ABSOLUTE (Note...