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LTC1685 Datasheet(PDF) 3 Page - Linear Technology |
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LTC1685 Datasheet(HTML) 3 Page - Linear Technology |
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3 / 12 page  3 LTC1685 SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS tPLH, tPHL Driver Input-to-Output RDIFF = 54Ω, CL1 = CL2 = 100pF, Figures 3, 5, Propagation Delay LTC1685C q 15 18.5 22 ns LTC1685I q 13 18.5 25 ns tSKEW Driver Output A-to-Output RDIFF = 54Ω, CL1 = CL2 = 100pF, 500 ps B Skew Figures 3, 5 tr, tf Driver Rise/Fall Time RDIFF = 54Ω, CL1 = CL2 = 100pF, 3.5 ns Figures 3, 5 tZH Driver Enable to Output High CL = 100pF, S2 Closed, Figures 4, 6 q 25 50 ns tZL Driver Enable to Output Low CL = 100pF, S1 Closed, Figures 4, 6 q 25 50 ns tLZ Driver Disable from Low CL = 15pF, S1 Closed, Figures 4, 6 q 25 50 ns tHZ Driver Disable from High CL = 15pF, S2 Closed, Figures 4, 6 q 25 50 ns tPLH, tPHL Receiver Input-to-Output CL = 15pF, Figures 3, 7 Propagation Delay LTC1685C q 15 18.5 22 ns LTC1685I q 13 18.5 25 ns tSQD Receiver Skew tPLH – tPHL CL = 15pF, Figures 3, 7 500 ps tZL Receiver Enable to Output Low CL = 15pF, S1 Closed, Figures 2, 8 q 25 50 ns tZH Receiver Enable to Output High CL = 15pF, S2 Closed, Figures 2, 8 q 25 50 ns tLZ Receiver Disable from Low CL = 15pF, S1 Closed, Figures 2, 8 q 25 50 ns tHZ Receiver Disable from High CL = 15pF, S2 Closed, Figures 2, 8 q 25 50 ns Maximum Receiver Input (Note 4) q 2000 ns Rise/Fall Times tPKG-PKG Package-to-Package Skew Same Temperature (Note 4) 1.5 ns Minimum Input Pulse Width VDD = 5V ± 5% (Note 4) LTC1685C q 17 19.2 ns LTC1685I q 20 25 ns Maximum Data Rate VDD = 5V ± 5% (Note 4) LTC1685C q 52 60 Mbps LTC1685I q 40 50 Mbps Maximum Input Frequency VDD = 5V ± 5% (Note 4) LTC1685C q 26 30 MHz LTC1685I q 20 25 MHz SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS IOSD2 Driver Short-Circuit Current, VOUT = LOW VOUT = – 7V or 10V (Note 5) q 20 mA IOSR Receiver Short-Circuit Current VOUT = 0V or VDD (Note 5) q 20 mA RIN Input Resistance – 7V ≤ VCM ≤ 12V q 22 k Ω CIN Input Capacitance A, B Inputs, D, DE, RE 3 pF Open-Circuit Input Voltage, Figure 5 VDD = 5V (Note 4) q 3.2 3.3 3.4 V Fail-Safe Time Time to Detect Fail-Safe Condition 2 µs CMRR Receiver Input Common Mode Rejection Ratio VCM = 2.6V, f = 26MHz 45 dB CLOAD Receiver and Driver Output Load Capacitance (Note 4) q 500 pF DC ELECTRICAL CHARACTERISTICS SWITCHING CHARACTERISTICS The q denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. VDD = 5V ±5%, unless otherwise noted. (Notes 2, 3) The q denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. VDD = 5V, unless otherwise noted. (Notes 2, 3) |
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