(China (Mainland))
Product Summary
The LTC1485CS8 is a low power differential bus/line transceiver designed for multipoint data transmission standard RS485 applications with extended common-mode range (12V to -7V). LTC1485CS8 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 LTC1485CS8 driver and receiver feature three-state outputs, with the driver outputs maintaining high impedance over the entire common 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 ±10kV.
Parametrics
LTC1485CS8 absolute maximum ratings: (1)Supply Voltage (VCC): 12V; (2)Control Input Voltages: – 0.5V to VCC + 0.5V; (3)Control Input Currents: – 50mA to 50mA; (4)Driver Input Voltages: – 0.5V to VCC + 0.5V; (5)Driver Input Currents: – 25mA to 25mA; (6)Driver Output Voltages: ±14V; (7)Receiver Input Voltages: ±14V; (8)Receiver Output Voltages: – 0.5V to VCC + 0.5V; (9)Operating Temperature Range: 0℃ to 70℃; (10)Storage Temperature Range: –65℃ to 150℃; (11)Lead Temperature (Soldering, 10 sec.): 300℃.
Features
LTC1485CS8 features: (1)ESD Protectioover ±10kV; (2)Low Power: ICC = 1.8mA Typ; (3)28ns Typical Driver PropagatioDelays with 4ns Skew; (4)Designed for RS485 or RS422 Applications; (5)Single 5V Supply; (6)–7V to 12V Bus Common-Mode Range Permits ±7V Ground Difference BetweeDevices othe Bus; (7)Thermal ShutdowProtection; (8)Power-Up/DowGlitch-Free Driver Outputs; (9)Driver Maintains High Impedance iThree-State or with the Power Off; (10)Combined Impedance of a Driver Output and Receiver Allows up to 32 Transceivers othe Bus; (11)60mV Typical Input Hysteresis; (12)PiCompatible with the SN75176A, DS75176A, and SN75LBC176.
Diagrams
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 LTC1485CS8 |
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IC TXRX DIFFERNTIAL BUS 8-SOIC |
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LTC1485CS8#PBF |
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IC TXRX DIFFERNTIAL BUS 8-SOIC |
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LTC1485CS8#TR |
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IC TXRX DIFFERNTIAL BUS 8-SOIC |
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LTC1485CS8#TRPBF |
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IC TXRX DIFFERNTIAL BUS 8-SOIC |
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