ADM3485EARZ Analog Devices Inc, ADM3485EARZ Datasheet
ADM3485EARZ
Specifications of ADM3485EARZ
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ADM3485EARZ Summary of contents
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FEATURES TIA/EIA RS-485/RS-422 compliant ±15 kV ESD protection on RS-485 input/output pins 12 Mbps data rate Half-duplex transceiver nodes on the bus Receiver open-circuit, fail-safe design Low power shutdown current Outputs high-Z when disabled or powered off ...
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ADM3485E 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 Thermal Resistance ...................................................................... 5 ESD ...
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SPECIFICATIONS V = +3.3 V ± 0.3 V. All specifications T CC Table 1. Parameter DRIVER Differential Outputs Differential Output Voltage ∆|V | for Complementary Output States OD Common-Mode Output Voltage ∆|V | for Complementary Output States OC Short-Circuit Output ...
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ADM3485E TIMING SPECIFICATIONS 25° Table 2. Parameter DRIVER Maximum Data Rate Differential Output Delay Differential Output Transition Time Propagation Delay From Low to High Level From High to Low Level |t − ...
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ABSOLUTE MAXIMUM RATINGS T = 25°C, unless otherwise noted. A Table 3. Parameter V to GND CC Digital Input/Output Voltage (DE, RE, DI) Receiver Output Voltage (RO) Driver Output (A, B)/ Receiver Input (A, B) Voltage Driver Output Current Power ...
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ADM3485E PIN CONFIGURATION AND PIN FUNCTION DESCRIPTIONS Table 5. Pin Function Descriptions Pin Mnemonic Number Description RO 1 Receiver Output. When enabled > 200 mV, then RO = high < 200 mV, ...
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TEST CIRCUITS AND SWITCHING CHARACTERISTICS Figure 3. Driver Differential Output Voltage and Common-Mode Output Voltage 375Ω 375Ω Figure 4. Driver Differential ...
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ADM3485E 50pF L 1 GENERATOR 50Ω ≤ 6.0ns PPR = 250kHz, 50% DUTY CYCLE INCLUDES PROBE AND STRAY CAPACITANCE 1.5V 1.5V t PSL OUT V ...
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TYPICAL PERFORMANCE CHARACTERISTICS 0.5 1.0 1.5 2.0 OUTPUT LOW VOLTAGE (V) Figure 12. Output Current vs. Receiver Output Low Voltage –18 –16 –14 –12 –10 –8 –6 –4 – 0.5 1.0 ...
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ADM3485E 120 100 OUTPUT LOW VOLTAGE (V) Figure 18. Output Current vs. Driver Output Low Voltage 120 100 –7 –6 –5 –4 –3 –2 –1 OUTPUT ...
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STANDARDS AND TESTING Table 6 compares RS-422 and RS-485 interface standards, and Table 7 and Table 8 show transmitting and receiving truth tables. Table 6. Specification RS-422 Transmission Type Differential Maximum Data Rate 10 Mbps Maximum Cable Length 4000 ft ...
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ADM3485E APPLICATIONS INFORMATION DIFFERENTIAL DATA TRANSMISSION Differential data transmission is used to reliably transmit data at high rates over long distances and through noisy environ- ments. Differential transmission nullifies the effects of ground shifts and noise signals that appear as ...
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... ADM3485EAR –40°C to +85°C ADM3485EAR-REEL7 –40°C to +85°C ADM3485EAR-REEL –40°C to +85°C ADM3485EARZ –40°C to +85°C ADM3485EARZ-REEL7 –40°C to +85°C ADM3485EARZ-REEL –40°C to +85° RoHS Compliant Part. 1 5.00 (0.1968) 4.80 (0.1890 6.20 (0.2441) 4.00 (0.1574 ...
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ADM3485E NOTES Rev Page ...
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NOTES Rev Page ADM3485E ...
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ADM3485E NOTES ©2000-2010 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D03338-0-8/10(D) Rev Page ...