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LT1134A Dataheets PDF



Part Number LT1134A
Manufacturers Linear Technology
Logo Linear Technology
Description Advanced Low Power 5V RS232 Drivers/Receivers with Small Capacitors
Datasheet LT1134A DatasheetLT1134A Datasheet (PDF)

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 ±10kV (±15kV IEC-1000-4-2 for LT1133A, LT1137A and LT1141A) Uses Small Capacitors: 0.1µF, 0.2µF 1µA Supply Current in SHUTDOWN 120kBaud Operation for RL = 3k, CL = 2500pF 250kBaud Operation for RL = 3k, CL = 1000pF CMOS Comparable Low Power Easy PC Layout: Flowthrough Architecture Rugged Bipolar Design: Absolutely No Latchup Outputs Ass.

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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 ±10kV (±15kV IEC-1000-4-2 for LT1133A, LT1137A and LT1141A) Uses Small Capacitors: 0.1µF, 0.2µF 1µA Supply Current in SHUTDOWN 120kBaud Operation for RL = 3k, CL = 2500pF 250kBaud Operation for RL = 3k, CL = 1000pF CMOS Comparable 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 ±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. 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 = 50pF DRIVER R OUTPUT RL = 3k CL = 2500pF INPUT 1130A • TA01 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 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 U Output Waveforms LT1130A • TA02 U 1 LT1130A/LT1140A Series ABSOLUTE AXI U RATI GS Supply Voltage (VCC) ................................................ 6V V + ........................................................................ 13.2V V – (Note 7) ....................................................... –13.2V Input Voltage Driver ........................................................... V – to V + Receiver ............................................... – 30V to 30V On/Off Pin ............................................. – 0.3V to 12V Driver Disable Pin ................... – 0.3V to (VCC + 0.3V) Output Voltage Driver .................................................... – 30V to 30V Receiver ................................. – 0.3V to (VCC + 0.3V) U PRODUCT SELECTIO TABLE Part Number LT1130A LT1131A LT1132A LT1133A** LT1134A LT1135A LT1136A LT1137A** LT1138A LT1139A LT1140A LT1141A** Power Supply Voltages* 5 5 5 5 5 5, 12, –12 5 5 5 5, 12 5, 12, –12 5, 12, –12 Shutdown No Yes No No No No Yes Yes Yes Yes Yes Yes *The LT1130A, LT1131A, LT1132A, LT1134A, LT1136A, LT1137A and LT1138A can operate with 5V and 12V supplies and two external capacitors. **Meets ±15kV ESD air gap discharge and ± 8kV contact methods per IEC-1000-4-2. PACKAGE/ORDER I FOR ATIO 5-DRIVER/5-RECEIVER TOP VIEW V+ 5V VCC C1+ C1– DRIVER OUT RX IN DRIVER OUT RX IN DRIVER OUT 1 2 3 4 5 6 7 8 9 LT1130A 28 V – 27 C2 – 26 C2 + 25 DRIVER IN 24 RX OUT 23 DRIVER IN 22 RX OUT 21 DRIVER IN 20 RX OUT 19 DRIVER IN 18 RX OUT 17 DRIVER IN 16 RX OUT 15 GND SW PACKAGE 28-LEAD PLASTIC SO WIDE ORDER PART NUMBER LT1130ACNW LT1130ACSW LT1130AISW RX IN 10 DRIVER OUT 11 RX IN 12 DRIVER OUT 13 RX IN 14 NW PACKAGE 28-LEAD PDIP TJMAX = 150°C, θJA = 56°C/W (NW) TJMAX = 150°C, θJA = 68°C/W (SW) 2 U U W W W U W (Note 1) Short-Circuit Duration V + ................................................................... 30 sec V – ................................................................... 30 sec Driver Output .............................................. Indefinite Receiver Output .......................................... Indefinite Operating Temperature Range LT113XAC/LT114XAC ............................ 0°C to 70°C LT113XAI/LT114XAI ............................. – 40° to 85°C Storage Temperature Range ....


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