LT1131A Datasheet | Linear Technology

LT1130A/LT1140A Series Advanced Low Power 5V RS232 Drivers/Receivers with Small Capacitors Features s DESCRIPTIO s s s s s s s s s s s ESD Protection over ±10k V (±15k V IEC-1000-4-2 for LT1133A, LT1137A and LT1141A) Uses Small Capacitors: 0.1µF, 0.2µF 1µA Supply Current in SHUTDOWN 120k Baud Operation for RL = 3k, CL = 2500p F 250k Baud Operation for RL = 3k, CL = 1000p F CMOS parable Low Power Easy PC Layout: Flowthrough Architecture Rugged Bipolar Design: Absolutely No Latchup Outputs Assume a High Impedance State When Off or Powered Down Improved Protection: RS232 I/O Lines Can Be Forced to ± 30V Without Damage Output Overvoltage Does Not Force Current Back into Supplies Available in SO and SSOP Packages The LT ®1130A/LT1140A series of RS232 drivers/receivers Features special bipolar construction techniques which protect the drivers and receivers beyond the fault conditions stipulated for RS232. Driver outputs and receiver inputs can be shorted to ± 30V without damaging the device or the power supply generator. In addition, the RS232 I/O pins are resilient to multiple ±10k V ESD strikes. An advanced driver output stage operates up to 250kbaud while driving heavy capacitive loads. Supply current is typically 12m A, petitive with CMOS devices. Several members of the series include flexible operating mode controls. The DRIVER DISABLE pin disables the drivers and the charge pump, the ON/OFF pin shuts down all circuitry. While shut down, the drivers and receivers assume high impedance output states. , LTC and LT are registered trademarks of Linear Technology Corporation. TYPICAL APPLICATIO Basic Operation V+ 1 0.1µF 0.1µF ×2 DRIVER OUT RX IN DRIVER OUT TO LINE RX IN RX IN RX IN DRIVER OUT RX IN ON/OFF = 5V 5V VCC 2 3 4 5 6 7 8 9 10 11 12 13 14 LT1137A 28 27 26 25 24 23 22 21 20 19 18 17 16 15 V- 0.1µF ×2 DRIVER IN RX OUT DRIVER IN RX OUT RX OUT RX OUT DRIVER IN RX OUT GND DRIVER DISABLE TO LOGIC 0.1µF RECEIVER OUTPUT CL = 50p F DRIVER R OUTPUT RL = 3k CL =...