LT1781IS#PBF

LT1781 is a dual RS232 driver/receiver pairs with integral charge pump to generate RS232 voltage levels from a single 5V supply. Using only 0.1µF external capacitors, these circuits consume only 40mW of power, and can operate to 120Kbaud even while driving heavy capacitive loads. New ESD structures on the chip allow the device to survive ±15KV air gap and ±8KV contact ESD tests per IEC 1000-4-2, eliminating the need for costly TransZorbs® on the RS232 line pins. This device are fully compliant with EIA RS232 standards. Driver outputs are protected from overload, and can be shorted to ground or upto ±30V without damage. During SHUTDOWN or power-off conditions, driver and receiver outputs are in a high impedance state, allowing line sharing. It is widely used in application such as portable computers, battery-powered systems, power supply generator, terminals, modems etc.

• Supply current is 8mA typical
• Outputs withstand ±30V without damage
• Operates from a single 5V supply
• Rugged bipolar design
• Outputs assume a high impedance state when off or powered down
• Meets all RS232 specifications
• Available with or without shutdown
• Absolutely no latch-up
• Operating temperature is 0°C to 70°C
• Package style is 16-NSOIC

Note

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