Product Summary

The LT1081CN is a dual RS232 driver/receiver with charge pump to guarantee absolutely no latchup. The LT1081CN provides a realistic balance between CMOS levels of power dissipation and real world requirements for ruggedness. The driver outputs of the LT1081CN are fully protected against overload and can be shorted to ±30V. Unlike CMOS, the advanced architecture of the LT1081CN does not load the signal line when shut down or when power is off. Both the receiver and RS232 outputs are put into a high impedance state. An advanced output stage allows driving higher capacitive loads at higher speeds with exceptional ruggedness against ESD. The applications of the LT1081CN include Portable Computers, Battery-Powered RS232 Systems, Power Supply Generator, Terminals and Modems.

Parametrics

LT1081CN absolute maximum ratings: (1)Supply Voltage (VCC): 6V; V+: 12V; V–: –12V; (2)Input Voltage Driver: V– to V+; Receiver: –30V to 30V; ON/OFF Pin: GND to 12V; (3)Output Voltage Driver: (V– + 30V) to (V+ – 30V); Receiver: –0.3V to (VCC + 0.3V); (4)Short-Circuit Duration V+: 30 sec; V–: 30 sec; Driver Output: Indefinite; Receiver Output: Indefinite; (5)Operating Temperature Range: –55 to 125℃; (6)Storage Temperature Range:–65 to 150℃; (7)Lead Temperature (Soldering, 10 sec): 300℃.

Features

LT1081CN features: (1)Superior to CMOS; (2)Improved Speed: Operates over 120kBaud; (3)Improved Protection: Outputs Can Be Forced to ±30V without Damage; (4)Three-State Outputs Are High Impedance When Off; (5)Only Needs 1mF Capacitors; (6)Absolutely No Latchup; (7)CMOS Comparable Low Power: 60mW; (8)Can Power Additional RS232 Drivers: 10mA; (9)Supply Current in Shutdown: 1mA; (10)Available in SO Package; (11)Available with or without Shutdown.

Diagrams

LT1081CN typical applications

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LT1081CN
LT1081CN


IC DVR/RCVR DUAL-RS232 5V 16-DIP

Data Sheet

0-2650: $1.59
LT1081CN#PBF
LT1081CN#PBF


IC DVR/RCVR DUAL-RS232 5V 16-DIP

Data Sheet

0-1: $2.86
1-25: $1.90
25-100: $1.59