LT1280ACSW#PBF

LT1280ACSW#PBF is a dual RS232 driver/receiver pairs with integral charge pump to generate RS232 voltage levels from a single 5V supply. This circuit features rugged bipolar design to provide operating fault tolerance and ESD protection unmatched by competing CMOS designs. Using only 0.1µF external capacitors, this circuit consumes only 40mW of power, and can operate to 120kbaud even while driving heavy capacitive loads. New ESD structures on the chip allows the device to survive multiple ±10kV strikes, eliminating the need for costly TransZorbs® on the RS232 line pins. It is fully compliant with EIA RS232 standards. Driver outputs are protected from overload, and can be shorted to ground or up to ±30V without damage. During shutdown or power-off conditions, driver and receiver outputs are in a high impedance state, allowing line sharing. It is used in applications such as portable computers, battery-powered systems, power supply generator, terminals, modems.

• Rugged bipolar design, operates from a single 5V supply
• Supply current (VCC) is 8mA typical at (TA = 25°C)
• Oscillator frequency is 130KHz typical
• Data rate is 120kBaud minimum at (RL = 3K, CL = 2500pF)
• Slew rate is 15V/µs typical at (RL = 3K, CL = 51pF)
• Propagation delay is 0.6µs typical at (output transition tHL high-to-low)
• Input resistance (receiver) is 5Kohm typical at (VIN = ±10V)
• Output leakage current is 10µA typical at (shutdown VOUT = ±30V)
• Operating temperature range from 0°C to 70°C
• 18-lead plastic SO wide package

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party