ADM2682EBRIZ Analog Devices Inc, ADM2682EBRIZ Datasheet
ADM2682EBRIZ
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ADM2682EBRIZ Summary of contents
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FEATURES 5 kV rms isolated RS-485/RS-422 transceiver, configurable as half or full duplex isoPower integrated isolated dc-to-dc converter ±15 kV ESD protection on RS-485 input/output pins Complies with ANSI/TIA/EIA-485-A-98 and ISO 8482:1987(E) Data rate: 16 Mbps (ADM2682E), 500 kbps (ADM2687E) ...
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ADM2682E/ADM2687E TABLE OF CONTENTS Features .............................................................................................. 1 Applications....................................................................................... 1 Functional Block Diagram .............................................................. 1 General Description ......................................................................... 1 Revision History ............................................................................... 2 Specifications..................................................................................... 3 ADM2682E Timing Specifications ............................................ 4 ADM2687E Timing Specifications ............................................ 4 Package Characteristics ............................................................... 4 Regulatory Information............................................................... ...
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SPECIFICATIONS All voltages are relative to their respective ground; 3.0 ≤ V recommended operation range, unless otherwise noted. All typical specifications are at T Table 1. Parameter ADM2687E SUPPLY CURRENT Data Rate ≤ 500 kbps ADM2682E SUPPLY CURRENT Data Rate ...
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ADM2682E/ADM2687E ADM2682E TIMING SPECIFICATIONS T = −40°C to +85°C. A Table 2. Parameter Symbol DRIVER Maximum Data Rate Propagation Delay, Low to High t DPLH Propagation Delay, High to Low t DPHL Output Skew t SKEW Rise Time/Fall Time t ...
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REGULATORY INFORMATION Table 5. ADM2682E/ADM2687E Approvals (Pending) Organization Approval Type To be recognized under the UL 1577 Component Recognition Program of Underwriters Laboratories, Inc. UL (Pending) Single protection, 5000 V rms isolation voltage. In accordance with UL 1577, each ≥ ...
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ADM2682E/ADM2687E VDE 0884 INSULATION CHARACTERISTICS (PENDING) This isolator is suitable for basic electrical isolation only within the safety limit data. Maintenance of the safety data must be ensured by means of protective circuits. Table 7. Description CLASSIFICATIONS Installation Classification per ...
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ABSOLUTE MAXIMUM RATINGS T = 25°C, unless otherwise noted. All voltages are relative to A their respective ground. Table 8. Parameter V CC Digital Input Voltage (DE, RE, TxD) Digital Output Voltage (RxD) Driver Output/Receiver Input Voltage Operating Temperature Range ...
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ADM2682E/ADM2687E PIN CONFIGURATION AND FUNCTION DESCRIPTIONS Table 10. Pin Function Descriptions Pin No. Mnemonic Description 1 GND Ground, Logic Side Logic Side Power Supply recommended that a 0.1 μF and a 0.01 μF decoupling capacitor ...
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TYPICAL PERFORMANCE CHARACTERISTICS 200 180 160 R = 54Ω L 140 120 R = 120Ω L 100 LOAD –40 – TEMPERATURE (°C) Figure 3. ADM2682E Supply Current (I (Data Rate = 16 ...
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ADM2682E/ADM2687E 140 R = 54Ω L 120 100 R = 120Ω LOAD 125 200 275 DATA RATE (kbps) Figure 9. ADM2687E Supply Current ( 25° 3 ...
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OUTPUT HIGH VOLTAGE (V) Figure 15. Receiver Output Current vs. Receiver Output High Voltage OUTPUT LOW VOLTAGE ...
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ADM2682E/ADM2687E RPHL –40 – TEMPERATURE (°C) Figure 21. ADM2682E Receiver Propagation Delay vs. Temperature 100 RPHL RPLH 91 90 ...
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R = 54Ω 120Ω LOAD 10 0 –40 – TEMPERATURE (°C) Figure 27. ADM2682E Isolated Supply Current vs. Temperature (V = 3.3 V, Data Rate = 16 Mbps) ...
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ADM2682E/ADM2687E TEST CIRCUITS Y TxD V OD2 Z Figure 29. Driver Voltage Measurement Y V TxD 60Ω OD3 Z Figure 30. Driver Voltage Measurement over Common Mode Y TxD Figure 31. Driver Propagation Delay ...
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SWITCHING CHARACTERISTICS DPLH Z 1/ 90% POINT – V DIFF (Y) (Z) V DIFF 10% POINT – ...
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ADM2682E/ADM2687E CIRCUIT DESCRIPTION SIGNAL ISOLATION The ADM2682E/ADM2687E signal isolation rms is implemented on the logic side of the interface. The part achieves signal isolation by having a digital isolation section and a trans- ceiver section (see Figure ...
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This situation should occur in the ADM2682E/ADM2687E only during power-up and power-down operations. The limitation on ...
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ADM2682E/ADM2687E APPLICATIONS INFORMATION PCB LAYOUT The ADM2682E/ADM2687E isolated RS-422/RS-485 transceiver contains an isoPower integrated dc-to-dc converter, requiring no external interface circuitry for the logic interfaces. Power supply bypassing is required at the input and output supply pins (see Figure 41). ...
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INSULATION LIFETIME All insulation structures eventually break down when subjected to voltage stress over a sufficiently long period. The rate of insulation degradation is dependent on the characteristics of the voltage waveform applied across the insulation. Analog Devices conducts an ...
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ADM2682E/ADM2687E TYPICAL APPLICATIONS An example application of the ADM2682E/ADM2687E duplex RS-485 node is shown in the circuit diagram of Figure 45. Refer to the PCB Layout section for the recommended placement of the capacitors shown in this circuit diagram. Placement ...
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MAXIMUM NUMBER OF TRANSCEIVERS ON BUS = 256 ADM2582E/ ADM2587E A RxD TxD ADM2682E/ ADM2687E RxD RE NOTES EQUAL TO THE CHARACTERISTIC IMPEDANCE OF THE CABLE. ...
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... PARENTHESES) ARE ROUNDED-OFF MILLIMETER EQUIVALENTS FOR REFERENCE ONLY AND ARE NOT APPROPRIATE FOR USE IN DESIGN. Figure 48. 16-Lead Standard Small Outline Package with Increased Creepage [SOIC_IC] ORDERING GUIDE Model 1 Data Rate (Mbps) ADM2682EBRIZ 16 ADM2682EBRIZ-RL7 16 ADM2687EBRIZ 0.5 ADM2687EBRIZ-RL7 0.5 EVAL-ADM2682EEBZ EVAL-ADM2687EEBZ RoHS Compliant Part. ...
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NOTES Rev Page ADM2682E/ADM2687E ...
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ADM2682E/ADM2687E NOTES ©2011 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D09927-0-7/11(0) Rev Page ...