ADM3485EARZ Analog Devices Inc, ADM3485EARZ Datasheet
ADM3485EARZ
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ADM3485EARZ Summary of contents
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ADM3483/ADM3485/ADM3488/ADM3490/ADM3491 FEATURES Operate with 3.3 V supply Interoperable with 5 V logic EIA RS-422 and RS-485 compliant over full common-mode range Data rate options ADM3483/ADM3488: 250 kbps ADM3485/ADM3490/ADM3491: 10 Mbps Half- and full-duplex options Reduced slew rates for low EMI ...
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ADM3483/ADM3485/ADM3488/ADM3490/ADM3491 TABLE OF CONTENTS Features .............................................................................................. 1 Applications....................................................................................... 1 General Description ......................................................................... 1 Functional Block Diagrams............................................................. 1 Revision History ............................................................................... 2 Specifications..................................................................................... 4 Timing Specifications—ADM3485/ADM3490/ADM3491.... 5 Timing Specifications—ADM3483/ADM3488........................ 5 Timing Specifications—ADM3483/ADM3485/ADM3488/ ADM3490/ADM3491 .................................................................. 6 Absolute Maximum Ratings............................................................ 7 ESD Caution.................................................................................. ...
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Table 1. ADM34xx Part Comparison Guaranteed Data Supply Part No. Rate (Mbps) Voltage (V) ADM3483 0.25 3.0 to 3.6 ADM3485 10 3.0 to 3.6 ADM3488 0.25 3.0 to 3.6 ADM3490 10 3.0 to 3.6 ADM3491 10 3.0 to 3.6 ADM3483/ADM3485/ADM3488/ADM3490/ADM3491 ...
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ADM3483/ADM3485/ADM3488/ADM3490/ADM3491 SPECIFICATIONS V = 3.3 V ± 0 unless otherwise noted MIN MAX Table 2. Parameter DRIVER Differential Output Voltage ( Δ for Complementary Output States OD ...
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TIMING SPECIFICATIONS—ADM3485/ADM3490/ADM3491 25°C, unless otherwise noted Table 3. Parameter DRIVER Differential Output Delay ( Differential Output Transition Time (t TD Propagation Delay, Low-to-High Level (t Propagation Delay, High-to-Low Level (t ...
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ADM3483/ADM3485/ADM3488/ADM3490/ADM3491 TIMING SPECIFICATIONS—ADM3483/ADM3485/ADM3488/ADM3490/ADM3491 25°C, unless otherwise noted Table 5. Parameter RECEIVER Time to Shutdown (t ) SHDN 1 ADM3483/ADM3485/ADM3491 Propagation Delay, Low-to-High Level (t ADM3485/ADM3490/ADM3491 ADM3483/ADM3488 Propagation Delay, High-to-Low Level (t ADM3485/ADM3490/ADM3491 ...
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ABSOLUTE MAXIMUM RATINGS T = 25°C, unless otherwise noted. A Table 6. Parameter V to GND CC Digital I/O Voltage (DE, RE, DI) Digital I/O Voltage (RO) Driver Output/Receiver Input Voltage Operating Temperature Range Storage Temperature Range θ Thermal Impedance ...
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ADM3483/ADM3485/ADM3488/ADM3490/ADM3491 PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS ADM3483 ADM3485 TOP VIEW (Not to Scale) DI GND 4 5 Figure 4. ADM3483/ADM3485 Pin Configuration Table 7. Pin Function Descriptions ...
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TEST CIRCUITS A B/Z Figure 7. Differential Output Voltage and Common-Mode Voltage Drivers 375Ω 375Ω Figure 8. Differential Output Voltage Drivers with Varying Common-Mode ...
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ADM3483/ADM3485/ADM3488/ADM3490/ADM3491 50pF L 1 GENERATOR 50Ω ≤ 6.0ns PPR = 250kHz, 50% DUTY CYCLE INCLUDES PROBE AND STRAY CAPACITANCE. L Figure 13. Driver Enable and Disable Times ...
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SWITCHING CHARACTERISTICS IN 1.5V 1. 90% 90% 50% 50% OUT 10 Figure 16. Driver Differential Output Delay and Transition Times IN 1.5V 1.5V t PLH A OUT t PHL B OUT Figure ...
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ADM3483/ADM3485/ADM3488/ADM3490/ADM3491 TYPICAL PERFORMANCE CHARACTERISTICS 0.5 1.0 1.5 2.0 OUTPUT VOLTAGE (V) Figure 22. Output Current vs. Receiver Output Low Voltage –16 –14 –12 –10 –8 –6 –4 – 0.5 1.0 ...
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OUTPUT VOLTAGE (V) Figure 28. Output Current vs. Driver Output Low Voltage –125 –115 –105 –95 –85 –75 –65 –55 –45 –35 –25 –15 –5 –7 –6 ...
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ADM3483/ADM3485/ADM3488/ADM3490/ADM3491 CIRCUIT DESCRIPTION The ADM3483/ADM3485/ADM3488/ADM3490/ADM3491 are low power transceivers for RS-485 and RS-422 communi- cations. The ADM3483/ADM3488 transmit and receive at data rates up to 250 kbps; the ADM3485/ADM3490/ADM3491 trans- mit Mbps. The ADM3488/ADM3490/ADM3491 are full-duplex ...
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LINE LENGTH VS. DATA RATE The RS-485 and RS-422 standards cover line lengths up to 4000 feet. For line lengths greater than 4000 feet, see Figure 36. ADM3483/ ADM3485 ...
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ADM3483/ADM3485/ADM3488/ADM3490/ADM3491 MASTER ADM3488/ ADM3490 ADM3488/ ADM3490 SLAVE Figure 34. ADM3488/ADM3490 Full-Duplex Daisy-Chain Network MASTER ADM3488/ ADM3490 ...
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OUTLINE DIMENSIONS 0.25 (0.0098) 0.10 (0.0040) COPLANARITY 4.00 (0.1575) 3.80 (0.1496) 0.25 (0.0098) 0.10 (0.0039) COPLANARITY 0.10 CONTROLLING DIMENSIONS ARE IN MILLIMETERS; INCH DIMENSIONS (IN PARENTHESES) ARE ROUNDED-OFF MILLIMETER EQUIVALENTS FOR REFERENCE ONLY AND ARE NOT APPROPRIATE FOR USE IN ...
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ADM3483/ADM3485/ADM3488/ADM3490/ADM3491 ORDERING GUIDE 1 Model Temperature Range −40°C to +85°C ADM3483ARZ ADM3483ARZ–REEL7 −40°C to +85°C −40°C to +85°C ADM3485ARZ −40°C to +85°C ADM3485ARZ–REEL7 ADM3488ARZ −40°C to +85°C ADM3488ARZ–REEL7 −40°C to +85°C −40°C to +85°C ADM3490ARZ ADM3490ARZ–REEL7 −40°C to +85°C ADM3491AR ...
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NOTES ADM3483/ADM3485/ADM3488/ADM3490/ADM3491 Rev Page ...
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ADM3483/ADM3485/ADM3488/ADM3490/ADM3491 NOTES ©2005-2010 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D05524-0-12/10(D) Rev Page ...