Datasheet LTM2881 (Analog Devices) - 7
| 制造商 | Analog Devices |
| 描述 | Complete Isolated RS485/RS422 μModule Transceiver + Power |
| 页数 / 页 | 24 / 7 — Typical perForMance characTerisTics. TA = 25°C, LTM2881-3 VCC = 3.3V, … |
| 文件格式/大小 | PDF / 594 Kb |
| 文件语言 | 英语 |
Typical perForMance characTerisTics. TA = 25°C, LTM2881-3 VCC = 3.3V, LTM2881-5
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LTM2881
Typical perForMance characTerisTics TA = 25°C, LTM2881-3 VCC = 3.3V, LTM2881-5 VCC = 5.0V, VL = 3.3V unless otherwise noted. Driver Propagation Delay Receiver Skew vs Temperature Driver Skew vs Temperature vs Temperature
2.0 2.0 80 1.5 1.5 75 1.0 1.0 Y (ns) 70 0.5 0.5 65 0 0 60 RECEIVER SKEW (ns) DRIVER SKEW (ns) DRIVER PROP DELA –0.5 –0.5 55 –1.0 –1.0 50 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) 2881 G01 2881 G02 2881 G03
Driver Output Low/High Voltage Driver Differential Output Voltage RTERM vs Temperature vs Output Current vs Temperature
130 5.0 6 128 4.5 5 126 4.0 OUTPUT HIGH R = ∞ 124 3.5 4 122 3.0 TAGE (V) TAGE (V) R = 100Ω ANCE (Ω) 120 2.5 3 118 2.0 R = 54Ω RESIST 2 116 OUTPUT VOL 1.5 OUTPUT LOW OUTPUT VOL 114 1.0 1 112 0.5 110 0 0 –50 –25 0 25 50 75 100 125 0 10 20 30 40 50 60 70 –50 –25 0 25 50 75 100 125 TEMPERATURE (°C) OUTPUT CURRENT (mA) TEMPERATURE (°C) 2881 G04 2881 G05 2881 G06
Receiver Output Voltage vs Receiver Propagation Delay Output Current (Source and Sink) vs Temperature Supply Current vs Data Rate
4 120 200 180 SOURCE 115 160 3 R = 54Ω (LTM2881-3) Y (ns) 140 110 120 TAGE (V) R = 100Ω (LTM2881-3) 2 105 100 R = 54Ω (LTM2881-5) Y CURRENT (mA) 80 100 R = 100Ω (LTM2881-5) OUTPUT VOL 60 1 SUPPL RECEIVER PROP DELA 40 95 R = ∞ (LTM2881-3) SINK 20 R = ∞ (LTM2881-5) 0 90 0 0 1 2 3 4 5 –50 –25 0 25 50 75 100 125 0.1 1 10 OUTPUT CURRENT (mA) TEMPERATURE (°C) DATA RATE (Mbps) 2881 G07 2881 G08 2881 G09 2881fi For more information www.linear.com/LTM2881 7 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Switching Characteristics Isolation Characteristics Typical Performance Characteristics Pin Functions Block Diagram Test Circuits Functional Table Applications Information Typical Applications Package Description Revision History Typical Application Related Parts
Typical perForMance characTerisTics TA = 25°C, LTM2881-3 VCC = 3.3V, LTM2881-5 VCC = 5.0V, VL = 3.3V unless otherwise noted. Driver Propagation Delay Receiver Skew vs Temperature Driver Skew vs Temperature vs Temperature
2.0 2.0 80 1.5 1.5 75 1.0 1.0 Y (ns) 70 0.5 0.5 65 0 0 60 RECEIVER SKEW (ns) DRIVER SKEW (ns) DRIVER PROP DELA –0.5 –0.5 55 –1.0 –1.0 50 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) 2881 G01 2881 G02 2881 G03
Driver Output Low/High Voltage Driver Differential Output Voltage RTERM vs Temperature vs Output Current vs Temperature
130 5.0 6 128 4.5 5 126 4.0 OUTPUT HIGH R = ∞ 124 3.5 4 122 3.0 TAGE (V) TAGE (V) R = 100Ω ANCE (Ω) 120 2.5 3 118 2.0 R = 54Ω RESIST 2 116 OUTPUT VOL 1.5 OUTPUT LOW OUTPUT VOL 114 1.0 1 112 0.5 110 0 0 –50 –25 0 25 50 75 100 125 0 10 20 30 40 50 60 70 –50 –25 0 25 50 75 100 125 TEMPERATURE (°C) OUTPUT CURRENT (mA) TEMPERATURE (°C) 2881 G04 2881 G05 2881 G06
Receiver Output Voltage vs Receiver Propagation Delay Output Current (Source and Sink) vs Temperature Supply Current vs Data Rate
4 120 200 180 SOURCE 115 160 3 R = 54Ω (LTM2881-3) Y (ns) 140 110 120 TAGE (V) R = 100Ω (LTM2881-3) 2 105 100 R = 54Ω (LTM2881-5) Y CURRENT (mA) 80 100 R = 100Ω (LTM2881-5) OUTPUT VOL 60 1 SUPPL RECEIVER PROP DELA 40 95 R = ∞ (LTM2881-3) SINK 20 R = ∞ (LTM2881-5) 0 90 0 0 1 2 3 4 5 –50 –25 0 25 50 75 100 125 0.1 1 10 OUTPUT CURRENT (mA) TEMPERATURE (°C) DATA RATE (Mbps) 2881 G07 2881 G08 2881 G09 2881fi For more information www.linear.com/LTM2881 7 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Switching Characteristics Isolation Characteristics Typical Performance Characteristics Pin Functions Block Diagram Test Circuits Functional Table Applications Information Typical Applications Package Description Revision History Typical Application Related Parts