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LTC1321 Datasheet(PDF) 3 Page - Linear Technology |
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LTC1321 Datasheet(HTML) 3 Page - Linear Technology |
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3 / 20 page  3 LTC1321/LTC1322/LTC1335 DC ELECTRICAL CHARACTERISTICS VCC = VDD (LTC1321/LTC1322) = 5V ±5%, VEE = –5V ±5% (Notes 2, 3) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS RS485 Driver (SEL1 = SEL2 = HIGH) VOD1 Differential Driver Output Voltage (Unloaded) IO = 0 q 5V VOD2 Differential Driver Output Voltage (With Load) Figure 1, R = 50 Ω (RS422) q 2.0 5 V Figure 1, R = 27 Ω (RS485) q 1.5 5 V ∆VOD Change in Magnitude of Driver Differential Figure 1, R = 27 Ω or R = 50Ω q 0.2 V Output Voltage for Complementary Output States VOC Driver Common-Mode Output Voltage Figure 1, R = 27 Ω or R = 50Ω q 3V ∆VOC Change in Magnitude of Driver Common-Mode Figure 1, R = 27 Ω or R = 50Ω q 0.2 V Output Voltage for Complementary Output States IOSD Driver Short-Circuit Current – 7V ≤ VO ≤ 12V, VO = HIGH q 35 250 mA – 7V ≤ VO ≤ 12V, VO = LOW (Note 4) q 10 250 mA IOZD Three-State Output Current (Y, Z) – 7V ≤ VO ≤ 12V q ±5 ±500 µA EIA/TIA-562 Driver (SEL1 = SEL2 = LOW) VO Output Voltage Swing Figure 4, RL = 3k, Positve q 3.7 4.2 V Figure 4, RL = 3k, Negative q – 3.7 – 4.3 V IOSD Output Short-Circuit Current VO = 0V q ±11 ±60 mA Driver Inputs and Control Inputs VIH Input High Voltage D, DE, ON/OFF, SEL1, SEL2, LB q 2V OE (LTC1335) q 2V VIL Input Low Voltage D, DE, ON/OFF, SEL1, SEL2, LB q 0.8 V OE (LTC1335) q 0.8 V IIN Input Current D, SEL1, SEL2 q ±10 µA DE, ON/OFF, LB q –4 – 15 µA OE (LTC1335) q 4 15 µA RS485 Receiver (SEL1 = SEL2 = HIGH) VTH Differential Input Threshold Voltage – 7V ≤ VCM ≤ 7V, Commercial q – 0.2 0.2 V – 7V ≤ VCM ≤ 7V, Industrial q – 0.3 0.3 V ∆VTH Input Hysteresis VCM = 0V q 70 mV IIN Input Current (A, B) – 7V ≤ VIN ≤ 12V q ±1mA RIN Input Resistance – 7V ≤ VIN ≤ 12V q 12 24 k Ω EIA/TIA-562 Receiver (SEL1 = SEL2 = LOW) VTH Receiver Input Voltage Threshold Input Low Threshold q 0.8 1.1 V Input High Threshold q 1.7 2.4 V ∆VTH Receiver Input Hysteresis q 0.1 0.6 1.0 V RIN Receiver Input Resistance VIN = ±10V 3 5 7 k Ω Receiver Output VOH Receiver Output High Voltage IO = – 3mA, VIN = 0V, SEL1 = SEL2 = LOW q 3.5 4.6 V VOL Receiver Output Low Voltage IO = 3mA, VIN = 3V, SEL1 = SEL2 = LOW q 0.2 0.4 V IOSR Short-Circuit Current 0V ≤ VO ≤ VCC q 785 mA IOZR Three-State Output Current ON/OFF = 0V q ±10 µA OE = VCC (LTC1335) q ±10 µA |
Similar Part No. - LTC1321 |
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Similar Description - LTC1321 |
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