特点
Superior to CMOS
Absolutely No Latchup
CMOS Comparable Low Power: 60mW
Can Power Additional RS232 Drivers: 10mA
Supply Current in Shutdown: 1μA
Available in SO Package
Available with or without Shutdown
典型应用
典型应用
描述
Most H (Metal Can), J (Ceramic), and K (Metal Can) Packages from Linear Technology Are Now Obsolete
Download Complete Datasheet for Details
The LT?1080/LT1081 are the only dual RS232 driver/receiver with charge pump to guarantee absolutely no latchup. These interface optimized devices provide a realistic balance between CMOS levels of power dissipation and real world requirements for ruggedness. The driver outputs are fully protected against overload and can be shorted to ±30V. Unlike CMOS, the advanced architecture of the LT1080/LT1081 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.
For applications requiring up to five drivers and five receivers with charge pump in one package see the LT1130A Series data sheet. A version of the LT1080/LT1081, the LT1180A and LT1181A that use only 0.1μF capacitors, is also available. All of Linear Technology’s RS232 ICs are available in standard surface mount packages.
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