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LTC2850HMS8 Datasheet(PDF) 5 Page - Linear Technology |
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LTC2850HMS8 Datasheet(HTML) 5 Page - Linear Technology |
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5 / 16 page  LTC2850/LTC2851/LTC2852 5 285012fc SWITCHING CHARACTERISTICS Note 1: Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. Exposure to any Absolute Maximum Rating condition for extended periods may affect device reliability and lifetime. High temperatures degrade operating lifetimes. Operating lifetime is derated at temperatures greater than 105°C. Note 2: All currents into device pins are positive; all currents out of device pins are negative. All voltages are referenced to device ground unless otherwise specified. The l denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. VCC = 3.3V, unless otherwise noted. (Note 2) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS Driver fMAX Maximum Data Rate (Note 3) l 20 Mbps tPLHD, tPHLD Driver Input to Output RDIFF = 54Ω, CL = 100pF (Figure 4) l 10 50 ns ΔtPD Driver Input to Output Difference |tPLHD – tPHLD| RDIFF = 54Ω, CL = 100pF (Figure 4) l 16 ns tSKEWD Driver Output Y to Output Z RDIFF = 54Ω, CL = 100pF (Figure 4) l 1±6 ns tRD, tFD Driver Rise or Fall Time RDIFF = 54Ω, CL = 100pF (Figure 4) l 4 12.5 ns tZLD, tZHD, tLZD, tHZD Driver Enable or Disable Time RL = 500Ω, CL = 50pF, RE = 0V (Figure 5) (LTC2850, LTC2852) l 70 ns tZHSD, tZLSD Driver Enable from Shutdown RL = 500Ω, CL = 50pF, RE = VCC (Figure 5) (LTC2850, LTC2852) l 8μs tSHDN Time to Shutdown RL = 500Ω, CL = 50pF, (DE = ↓, RE = VCC) or (DE = 0V, RE = ↑) (Figure 5) (LTC2850, LTC2852) l 100 ns Receiver tPLHR, tPHLR Receiver Input to Output CL = 15pF, VCM = 1.5V, |VAB| = 1.5V, tR and tF < 4ns (Figure 6) l 50 70 ns tSKEWR Differential Receiver Skew |tPLHR – tPHLR| CL = 15pF (Figure 6) l 16 ns tRR, tFR Receiver Output Rise or Fall Time CL = 15pF (Figure 6) l 3 12.5 ns tZLR, tZHR, tLZR, tHZR Receiver Enable/Disable RL =1k, CL =15pF, DE = VCC (Figure 7) (LTC2850, LTC2852) l 50 ns tZHSR, tZLSR Receiver Enable from Shutdown RL = 1k, CL = 15pF, DE = 0V (Figure 7) (LTC2850, LTC2852) l 8μs Note 3: Maximum data rate is guaranteed by other measured parameters and is not tested directly. Note 4: This IC includes overtemperature protection that is intended to protect the device during momentary overload conditions. Overtemperature protection activates at a junction temperature exceeding 150°C. Continuous operation above the specified maximum operating junction temperature may result in device degradation or failure. ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. VCC = 3.3V unless otherwise noted. (Note 2) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS Supplies ICCS Supply Current in Shutdown Mode DE = 0V, RE = VCC, LTC2850, LTC2852 (C and I-Grade) LTC2850, LTC2852 (H-Grade) l l 0 0 5 15 μA μA ICCR Supply Current in Receive Mode DE = 0V, RE = 0V (LTC2850, LTC2852) l 370 900 μA ICCT Supply Current in Transmit Mode No Load, DE = VCC, RE = VCC (LTC2850, LTC2852) l 450 1000 μA ICCTR Supply Current with Both Driver and Receiver Enabled No Load, DE = VCC, RE = 0V l 450 1000 μA |
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