LT1081IN#PBF

LT1081IN#PBF is an advanced low power 5V RS232 dual driver/receiver. The LT1081 is the only dual RS232 driver/ receiver with charge pump to guarantee absolutely no latchup. This interface optimized device provides a realistic balance between CMOS levels of power dissipation and real world requirements for ruggedness. The driver output is fully protected against overload and can be shorted to ±30V. Unlike CMOS, the advanced architecture of the 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. Application includes portable computers, battery-powered RS232 systems, power supply generator, terminals, modems.

• Data rate is 120kBd min (RL = 3K, CL = 2500pF, TA = 25°C)
• Improved protection: outputs can be forced to ±30V without damage
• Three-state outputs are high impedance when off
• Only needs 1µF capacitors, absolutely no latchup
• CMOS comparable low power: 60mW
• Can power additional RS232 drivers: 10mA
• Supply current in shutdown: 1µA
• Slew rate is 15V/µs typ (RL = 3K, CL = 51pF, TA = 25°C)
• Output voltage is 0.2V typ (Output low, IOUT = -1.6mA, TA = 25°C)
• 16 lead PDIP package, operating temperature range from -40°C to 85°C