LTC1334IG Linear Technology, LTC1334IG Datasheet
LTC1334IG
Specifications of LTC1334IG
Available stocks
Related parts for LTC1334IG
LTC1334IG Summary of contents
Page 1
... Both driver outputs and receiver inputs feature 10kV ESD protection. A loopback mode allows the driver outputs to be connected back to the receiver inputs for diagnostic self-test. , LTC and LT are registered trademarks of Linear Technology Corporation RS485 INTERFACE 5 ...
Page 2
... Negative DE, ON/OFF, SEL1, SEL2 DE, ON/OFF, SEL1, SEL2 SEL1, SEL2 DE, ON/OFF ORDER PART TOP VIEW NUMBER + – LTC1334CG LTC1334CNW LTC1334CSW /DE1 LTC1334IG LTC1334ISW 9 20 ON/OFF /DE2 PACKAGE 28-LEAD PDIP WIDE SW PACKAGE = 125 C/W ( 125 C/W (NW 125 C/W (SW) JA MIN TYP MAX 6 2 ...
Page 3
DC ELECTRICAL CHARACTERISTICS temperature range, otherwise specifications are at T SYMBOL PARAMETER RS485 Receiver (SEL1 = SEL2 = High) V Differential Input Threshold Voltage TH V Input Hysteresis TH I Input Current ( Input Resistance IN RS232 ...
Page 4
LTC1334 AC ELECTRICAL CHARACTERISTICS temperature range, otherwise specifications are at T SYMBOL PARAMETER RS485 Mode (SEL1 = SEL2 = High) t Driver Enable to Output Low ZL t Driver Enable to Output High ZH t Driver Disable from Low LZ ...
Page 5
W U TYPICAL PERFORMANCE CHARACTERISTICS Receiver Output Current vs Output High Voltage 2.0 2.5 3.0 3.5 4.0 4.5 5.0 OUTPUT ...
Page 6
LTC1334 W U TYPICAL PERFORMANCE CHARACTERISTICS RS485 Driver Output High Voltage vs Output Current – – –60 –50 –40 –30 –20 – OUTPUT VOLTAGE (V) ...
Page 7
CTIO S R (Pin 16): Receiver Output (Pin 17): Receiver Output /DE2 (Pin 18): RS232 Driver Input in RS232 Mode. Z2 RS485 Driver Enable with internal pull-up in RS485 mode. D ...
Page 8
LTC1334 W BLOCK DIAGRA SM PORT 1 = RS232 MODE PORT 2 = RS232 MODE ...
Page 9
TEST CIRCUITS LTC1334 • F01 Figure 1. RS422/RS485 Driver Test Load 0V SEL LTC1334 • F04 Figure 4. RS232 Driver Swing/Timing Test Circuit U SWITCHI G WAVEFOR ...
Page 10
LTC1334 U SWITCHI G WAVEFOR OD2 B – A –V OD2 –V O ...
Page 11
PPLICATI S I FOR ATIO A Basic Theory of Operation The LTC1334 has two interface ports. Each port may be configured as a pair of single-ended RS232 transceivers differential RS485 transceiver by forcing the ...
Page 12
LTC1334 PPLICATI S I FOR ATIO 1 LTC1334 0 0 INPUT A K1A 120 5 INPUT B PORT 1 INTERFACE 6 OUTPUT A K1B 5V 120 K1* 7 ...
Page 13
PPLICATI S I FOR ATIO A typical RS422 connection (Figure 15) allows one driver and ten receivers on a twisted pair of wires terminated with a 100 resistor at one end. A typical twisted-pair line repeater ...
Page 14
LTC1334 PPLICATI S I FOR ATIO LTC1323CS- CHARGE 0. PUMP 0. TXD 4 13 TXDEN – 12 TXD 5 EMI SHDN + 6 11 TXD RXEN EMI ...
Page 15
... MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED 0.010 INCH (0.254mm) Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen- tation that the interconnection of its circuits as described herein will not infringe on existing patent rights. ...
Page 16
... Three Drivers/Five Receivers, Five Receivers Alive in Shutdown Single Port, Configurable, 10kV ESD 0.697 – 0.712 0.394 – 0.419 (10.007 – 10.643 0.037 – 0.045 (0.940 – 1.143) 0.004 – 0.012 (0.102 – 0.305) S28 (WIDE) 1098 1334fa LT/TP 1099 2K REV A • PRINTED IN USA LINEAR TECHNOLOGY CORPORATION 1995 ...