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LT1137ACSW Datasheet(PDF) 1 Page - Linear Technology |
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LT1137ACSW Datasheet(HTML) 1 Page - Linear Technology |
1 / 12 page 1 LT1130A/LT1140A Series Advanced Low Power 5V RS232 Drivers/Receivers with Small Capacitors s ESD Protection over ±10kV ( ±15kV IEC-1000-4-2 for LT1133A, LT1137A and LT1141A) s Uses Small Capacitors: 0.1 µF, 0.2µF s 1 µA Supply Current in SHUTDOWN s 120kBaud Operation for RL = 3k, CL = 2500pF s 250kBaud Operation for RL = 3k, CL = 1000pF s CMOS Comparable Low Power s Easy PC Layout: Flowthrough Architecture s Rugged Bipolar Design: Absolutely No Latchup s Outputs Assume a High Impedance State When Off or Powered Down s Improved Protection: RS232 I/O Lines Can Be Forced to ±30V Without Damage s Output Overvoltage Does Not Force Current Back into Supplies s Available in SO and SSOP Packages The LT ®1130A/LT1140A series of RS232 drivers/receiv- ers features special bipolar construction techniques which protect the drivers and receivers beyond the fault condi- tions 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 ±10kV ESD strikes. An advanced driver output stage operates up to 250kbaud while driving heavy capacitive loads. Supply current is typically 12mA, competitive 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. LT1136A 4-Driver/5-Receiver RS232 Transceiver w/Shutdown LT1137A 3-Driver/5-Receiver RS232 Transceiver w/Shutdown LT1138A 5-Driver/3-Receiver RS232 Transceiver w/Shutdown LT1139A 4-Driver/4-Receiver RS232 Transceiver w/Shutdown LT1140A 5-Driver/3-Receiver RS232 Transceiver w/o Charge Pump LT1141A 3-Driver/5-Receiver RS232 Transceiver w/o Charge Pump LT1130A 5-Driver/5-Receiver RS232 Transceiver LT1131A 5-Driver/4-Receiver RS232 Transceiver w/Shutdown LT1132A 5-Driver/3-Receiver RS232 Transceiver LT1133A 3-Driver/5-Receiver RS232 Transceiver LT1134A 4-Driver/4-Receiver RS232 Transceiver LT1135A 5-Driver/3-Receiver RS232 Transceiver w/o Charge Pump R LT1130A • TA02 RECEIVER OUTPUT CL = 50pF DRIVER OUTPUT RL = 3k CL = 2500pF INPUT 1 2 3 4 5 6 7 8 9 10 11 12 13 14 28 27 26 25 24 23 22 21 20 19 18 17 16 15 5V VCC DRIVER OUT RX IN DRIVER OUT RX IN RX IN RX IN DRIVER OUT RX IN ON/OFF = 5V DRIVER IN RX OUT DRIVER IN RX OUT RX OUT RX OUT DRIVER IN RX OUT V+ 0.1 µF 0.1 µF × 2 0.1 µF × 2 0.1 µF GND DRIVER DISABLE TO LINE TO LOGIC V – 1130A • TA01 LT1137A Basic Operation Output Waveforms FEATURES DESCRIPTIO TYPICAL APPLICATIO |
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