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LTC2846 Datasheet(PDF) 4 Page - Linear Technology |
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LTC2846 Datasheet(HTML) 4 Page - Linear Technology |
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4 / 24 page  4 LTC2846 sn2846 2846fs The q denotes specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. VCC = 5V, VIN = 3.3V, VSHDN = VIN, unless otherwise noted. (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 RIN Input Impedance –7V ≤ VCM ≤ 7V (Figure 3) q 100 103 Ω tr, tf Rise or Fall Time CL = 50pF (Figures 4, 14) 15 ns tPLH Input to Output Rising CL = 50pF (Figures 4, 14) q 50 90 ns tPHL Input to Output Falling CL = 50pF (Figures 4, 14) q 50 90 ns ∆t Input to Output Difference, tPLH – tPHL CL = 50pF (Figures 4, 14) q 04 25 ns V.35 Driver VOD Differential Output Voltage Open Circuit, RL = 1.95k (Figure 5) q ±1.2 V With Load, – 4V ≤ VCM ≤ 4V (Figure 6) ±0.44 ±0.55 ±0.66 V VOA, VOB Single-Ended Output Voltage Open Circuit, RL = 1.95k (Figure 5) q ±1.2 V VOC Transmitter Output Offset RL = 50Ω (Figure 5) q ±0.6 V IOH Transmitter Output High Current VA, VB = 0V q –9 – 11 – 13 mA IOL Transmitter Output Low Current VA, VB = 0V q 911 13 mA IOZ Transmitter Output Leakage Current VA and VB ≤ 0.25V q ±1 ±100 µA ROD Transmitter Differential Mode Impedance q 50 100 150 Ω ROC Transmitter Common Mode Impedance – 2V ≤ VCM ≤ 2V (Figure 7) 135 150 165 Ω tr, tf Rise or Fall Time (Figures 8, 13) 5 ns tPLH Input to Output (Figures 8, 13) q 15 35 65 ns tPHL Input to Output (Figures 8, 13) q 15 35 65 ns ∆t Input to Output Difference, tPLH – tPHL (Figures 8, 13) q 016 ns tSKEW Output to Output Skew (Figures 8, 13) 4 ns V.35 Receiver VTH Differential Receiver Input Threshold Voltage – 2V ≤ VCM ≤ 2V (Figure 9) q – 0.2 0.2 V ∆VTH Receiver Input Hysteresis – 2V ≤ VCM ≤ 2V (Figure 9) q 15 40 mV RID Receiver Differential Mode Impedance – 2V ≤ VCM ≤ 2V q 90 103 110 Ω RIC Receiver Common Mode Impedance – 2V ≤ VCM ≤ 2V (Figure 10) 135 150 165 Ω tr, tf Rise or Fall Time CL = 50pF (Figures 4, 14) 15 ns tPLH Input to Output CL = 50pF (Figures 4, 14) q 50 90 ns tPHL Input to Output CL = 50pF (Figures 4, 14) q 50 90 ns ∆t Input to Output Difference, tPLH – tPHL CL = 50pF (Figures 4, 14) q 04 25 ns V.28 Driver VO Output Voltage Open Circuit q ±10 V RL = 3k (Figure 11) q ±5 ±8.5 V ISS Short-Circuit Current VOUT = GND q ±150 mA ROZ Power-Off Resistance – 2V < VO < 2V, Power Off q 300 Ω or No-Cable Mode SR Slew Rate RL = 7k, CL = 0 (Figures 11, 15) q 430 V/ µs tPLH Input to Output RL = 3k, CL = 2500pF (Figures 11, 15) q 1.5 2.5 µs tPHL Input to Output RL = 3k, CL = 2500pF (Figures 11, 15) q 1.5 2.5 µs |
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