ADM485ARMZ Analog Devices Inc, ADM485ARMZ Datasheet
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ADM485ARMZ
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ADM485ARMZ Summary of contents
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FEATURES Meets EIA RS-485 standard 5 Mbps data rate Single 5 V supply – +12 V bus common-mode range High speed, low power BiCMOS Thermal shutdown protection Short-circuit protection Driver propagation delay typical Receiver propagation delay: ...
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ADM485 TABLE OF CONTENTS Features .............................................................................................. 1 Applications....................................................................................... 1 Functional Block Diagram .............................................................. 1 General Description ......................................................................... 1 Revision History ............................................................................... 2 Specifications..................................................................................... 3 Timing Specifications .................................................................. 4 Absolute Maximum Ratings............................................................ 5 ESD Caution.................................................................................. 5 Pin Configuration and Function Descriptions............................. ...
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SPECIFICATIONS ± 5%, all specifications MIN Table 1. Parameter DRIVER Differential Output Voltage OD3 Δ|V | for Complementary Output States OD Common-Mode Output Voltage Δ|V | for ...
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ADM485 TIMING SPECIFICATIONS ± 5%, all specifications MIN Table 2. Parameter DRIVER Propagation Delay Input to Output, t PLH Driver Output to OUTPUT, t SKEW Driver Rise/Fall Time ...
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ABSOLUTE MAXIMUM RATINGS T = 25°C, unless otherwise noted. A Table 3. Parameter V CC Inputs Driver Input (DI) Control Inputs (DE, RE) Receiver Inputs (A, B) Outputs Driver Outputs (A, B) Receiver Output Power Dissipation 8-Lead MSOP θ , ...
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ADM485 PIN CONFIGURATION AND FUNCTION DESCRIPTIONS Table 6. Pin Function Descriptions Pin No. Mnemonic Function 1 RO Receiver Output. When enabled greater than B by 200 mV high less than B by ...
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TYPICAL PERFORMANCE CHARACTERISTICS 0.25 0.50 0.75 1.00 1.25 RECEIVER OUTPUT LOW VOLTAGE (V) Figure 3. Output Current vs. Receiver Output Low Voltage 0 –2 –4 –6 –8 –10 ...
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ADM485 100 0.5 1.0 1.5 2.0 2.5 DRIVER OUTPUT LOW VOLTAGE (V) Figure 9. Output Current vs. Driver Output Low Voltage 0 –10 –20 –30 –40 –50 –60 –70 ...
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T 1 CH1 1.00VΩ CH2 1.00VΩ M5.00ns W W Figure 15. Unloaded Driver Differential Outputs 1 CH1 1.00VΩ CH2 500mVΩ M5.00ns W W Figure 16. Loaded Driver Differential Outputs CH1 ...
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ADM485 TEST CIRCUITS V OD Figure 20. Driver Voltage Measurement 375Ω V 60Ω OD3 375Ω Figure 21. Driver Voltage Measurement A R LDIFF B Figure 22. Driver Propagation Delay TST Rev. ...
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SWITCHING CHARACTERISTICS 3V 1. PLH B 1/ – SKEW PLH PHL +V O 90% POINT 0V 10% POINT – Figure 26. Driver Propagation Delay, Rise/Fall Timing DE ...
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ADM485 APPLICATIONS INFORMATION DIFFERENTIAL DATA TRANSMISSION Differential data transmission is used to reliably transmit data at high rates over long distances and through noisy environments. Differential transmission nullifies the effects of ground shifts and noise signals that appear as common-mode ...
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OUTLINE DIMENSIONS 0.25 (0.0098) 0.10 (0.0040) COPLANARITY 5.00 (0.1968) 4.80 (0.1890 6.20 (0.2441) 4.00 (0.1574) 1 5.80 (0.2284) 3.80 (0.1497) 4 1.27 (0.0500) BSC 1.75 (0.0688) 1.35 (0.0532) 8° 0° 0.51 (0.0201) 0.10 0.31 (0.0122) 0.25 (0.0098) SEATING ...
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... ADM485ARM-REEL −40°C to +85°C ADM485ARM-REEL7 −40°C to +85°C ADM485ARMZ 1 −40°C to +85°C 1 ADM485ARMZ-REEL −40°C to +85°C ADM485ARMZ-REEL7 1 −40°C to +85°C ADM485JN 0°C to 70°C 1 ADM485JNZ 0°C to 70°C ADM485JR 0°C to 70°C ADM485JR-REEL 0° ...
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NOTES Rev Page ADM485 ...
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ADM485 NOTES ©1993–2008 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D00078-0-4/08(F) Rev Page ...