LTC491IS#PBF Linear Technology, LTC491IS#PBF Datasheet
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LTC491IS#PBF
Specifications of LTC491IS#PBF
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LTC491IS#PBF Summary of contents
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... The receiver has a fail safe feature which guarantees a high output state when the inputs are left open. Both AC and DC specifications are guaranteed from and 4.75V to 5.25V supply voltage range. , LTC and LT are registered trademarks of Linear Technology Corporation. 9 120 120 10 ...
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LTC491 BSOLUTE (Note 1) Supply Voltage (V ) ............................................... 12V CC Control Input Voltages .................... –0. Control Input Currents .......................... –50mA to 50mA Driver Input Voltages ...................... –0. Driver ...
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U S WITCHI G C HARA TERISTICS C temperature range, otherwise specifications are at T SYMBOL PARAMETER t Driver Input to Output PLH t Driver Input to Output PHL t Driver Output to Output SKEW Driver Rise ...
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LTC491 W U TYPICAL PERFOR A CE CHARACTERISTICS Driver Output High Voltage vs Output Current –96 –72 – 48 – OUTPUT VOLTAGE (V) LTC491 • TPC01 TTL Input Threshold ...
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TEST CIRCUITS OD2 LTC491 • F01 Figure 1. Driver DC Test Load DRIVER R RECEIVER DIFF Figure 2. Driver/Receiver Timing Test Circuit S1 1k ...
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LTC491 U W SWITCHI WAVEFOR 1. PLH V O 80% 50% 10% – 1/2 V SKEW 1. ...
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U U APPLICATIO S I FOR ATIO Typical Application A typical connection of the LTC491 is shown in Figure 9. Two twisted-pair wires connect driver/receiver pairs for full duplex data transmission. There are no restrictions on where ...
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LTC491 PPLICATI S I FOR ATIO A Cables and Data Rate The transmission line of choice for RS485 applications is a twisted pair. There are coaxial cables (twinaxial) made for this purpose that contain straight pairs, but ...
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PPLICATI S I FOR ATIO When the reflected signal returns to the driver, the ampli- tude will be lowered. The width of the pedestal is equal to twice the electrical length of the cable (about 1.5ns/foot). ...
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LTC491 PPLICATI S I FOR ATIO Fault Protection All of LTC’s RS485 products are protected against ESD transients up to 2kV using the human body model (100pF, 1.5k ). However, some applications need more protection. The ...
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... MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED .006" (0.15mm) 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. ...
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... ESD, Fail-Safe (LT1785A) 15kV ESD, Fail-Safe (LT1791A), LTC491 Pin Compatible www.linear.com R = 220k Y 10k 120 DRIVER Z 1/2 LTC491 ———— ———— HYSTERESIS = 10k • R LTC491 • TA03 LT/TP 0104 1K REV A • PRINTED IN USA LINEAR TECHNOLOGY CORPORATION 1992 19k R 491fa ...