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LTC2845 Datasheet(PDF) 4 Page - Linear Technology |
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LTC2845 Datasheet(HTML) 4 Page - Linear Technology |
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4 / 20 page  4 LTC2845 sn2845 2845fs The q denotes specifications which apply over the full operating tempera- ture range, otherwise specifications are at TA = 25°C. VCC = 5V, VIN = 3.3V, VDD = 8V, VEE = – 7V for V.28, – 5.5V for V.10, V.11 (Notes 2, 3) ELECTRICAL CHARACTERISTICS SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS V.11 Receiver VTH Input Threshold Voltage –7V ≤ VCM ≤ 7V q –0.2 0.2 V ∆VTH Input Hysteresis –7V ≤ VCM ≤ 7V q 15 40 mV IIN Input Current (A, B) –10V ≤ VA,B ≤ 10V q ±0.66 mA RIN Input Impedance –10V ≤ VA,B ≤ 10V q 15 30 k Ω tr, tf Rise or Fall Time (Figures 2, 6) 15 ns tPLH Input to Output LTC2845C CL = 50pF (Figures 2, 6) q 50 80 ns LTC2845I CL = 50pF (Figures 2, 6) q 50 90 ns tPHL Input to Output LTC2845C CL = 50pF (Figures 2, 6) q 50 80 ns LTC2845I CL = 50pF (Figures 2, 6) q 50 90 ns ∆t Input to Output Difference, tPLH – tPHL LTC2845C CL = 50pF (Figures 2, 6) q 04 16 ns LTC2845I CL = 50pF (Figures 2, 6) q 04 21 ns V.10 Driver VO Output Voltage Open Circuit, RL = 3.9k q ±4 ±6V VT Output Voltage RL = 450Ω (Figure 3) q ±3.6 V RL = 450Ω (Figure 3) 0.9VO ISS Short-Circuit Current VO = GND ±150 mA IOZ Output Leakage Current –0.25V ≤ VO ≤ 0.25V, Power Off or q ±0.1 ±100 µA No-Cable Mode or Driver Disabled tr, tf Rise or Fall Time RL = 450Ω, CL = 100pF (Figures 3, 7) 2 µs tPLH Input to Output RL = 450Ω, CL = 100pF (Figures 3, 7) 1 µs tPHL Input to Output RL = 450Ω, CL = 100pF (Figures 3, 7) 1 µs V.10 Receiver VTH Receiver Input Threshold Voltage q –0.25 0.25 V ∆VTH Receiver Input Hysteresis q 25 50 mV IIN Receiver Input Current –10V ≤ VA ≤ 10V q ±0.66 mA RIN Receiver Input Impedance –10V ≤ VA ≤ 10V q 15 30 k Ω tr, tf Rise or Fall Time CL = 50pF (Figures 4, 8) 15 ns tPLH Input to Output CL = 50pF (Figures 4, 8) 55 ns tPHL Input to Output CL = 50pF (Figures 4, 8) 109 ns ∆t Input to Output Difference, tPLH – tPHL CL = 50pF (Figures 4, 8) 60 ns V.28 Driver VO Output Voltage Open Circuit q ±10 V RL = 3k (Figure 3) q ±5 ±8.5 V ISS Short-Circuit Current VO = GND q ±150 mA IOZ Output Leakage Current –0.25V ≤ VO ≤ 0.25V, Power Off or q ±1 ±100 µA No-Cable Mode or Driver Disabled SR Slew Rate RL = 3k, CL = 2500pF (Figures 3, 7) q 430 V/ µs tPLH Input to Output RL = 3k, CL = 2500pF (Figures 3, 7) q 1.3 2.5 µs tPHL Input to Output RL = 3k, CL = 2500pF (Figures 3, 7) q 1.3 2.5 µs |
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