EVAL-ADM2487EEB5Z Analog Devices Inc, EVAL-ADM2487EEB5Z Datasheet
EVAL-ADM2487EEB5Z
Specifications of EVAL-ADM2487EEB5Z
Related parts for EVAL-ADM2487EEB5Z
EVAL-ADM2487EEB5Z Summary of contents
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FEATURES Isolated RS-485/RS-422 transceivers, configurable as half duplex or full duplex Integrated oscillator driver for external transformer ±15 kV ESD protection on RS-485 input/output pins Complies with TIA/EIA-485-A-98 and ISO 8482:1987(E) Data rate: 500 kbps/16 Mbps 3.3 ...
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ADM2482E/ADM2487E TABLE OF CONTENTS Features .............................................................................................. 1 Applications ....................................................................................... 1 Functional Block Diagram .............................................................. 1 General Description ......................................................................... 1 Revision History ............................................................................... 2 Specifications ..................................................................................... 3 Timing Specifications .................................................................. 4 Package Characteristics ............................................................... 5 Regulatory Information ............................................................... 5 Insulation and ...
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SPECIFICATIONS Each voltage is relative to its respective ground; 3.0 V ≤ V over the entire recommended operation range, unless otherwise noted. All typical specifications are at T unless otherwise noted. Table 1. Parameter SUPPLY CURRENT Power Supply Current, Logic ...
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ADM2482E/ADM2487E Parameter TRANSFORMER DRIVER Oscillator Frequency Switch-On Resistance Start-Up Voltage 1 COMMON-MODE TRANSIENT IMMUNITY the maximum common-mode voltage slew rate that can be sustained while maintaining specification-compliant operation. V difference between the logic and bus sides. The ...
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PACKAGE CHARACTERISTICS Table 4. Parameter 1 Resistance (Input-to-Output) 1 Capacitance (Input-to-Output) 2 Input Capacitance Input IC Junction-to-Case Thermal Resistance Output IC Junction-to-Case Thermal Resistance 1 Device considered a 2-terminal device: Pin 1 to Pin 8 are shorted together, and Pin ...
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ADM2482E/ADM2487E VDE 0884-2 INSULATION CHARACTERISTICS 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. An asterisk (*) on packages denotes DIN V ...
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ABSOLUTE MAXIMUM RATINGS Each voltage is relative to its respective ground; T unless otherwise noted. Table 8. Parameter V DD1 V DD2 Digital Input Voltages (DE, RE, TxD) Digital Output Voltages RxD D1, D2 Driver Output/Receiver Input Voltage Range Average ...
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ADM2482E/ADM2487E PIN CONFIGURATION AND FUNCTION DESCRIPTIONS Table 9. Pin Function Descriptions Pin No. Mnemonic Description 1 D1 Transformer Driver Terminal Transformer Driver Terminal 2. 3 GND Ground, Logic Side Power Supply, Logic Side (3.3 ...
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TYPICAL PERFORMANCE CHARACTERISTICS 2.30 2.25 2.20 2.15 2.10 2.05 2.00 1.95 –40 – TEMPERATURE (°C) Figure 3. ADM2487E I Supply Current vs. Temperature DD1 = 3 (Data Rate = ...
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ADM2482E/ADM2487E 0 –10 –20 –30 –40 –50 –60 – OUTPUT VOLTAGE (V) Figure 9. Output Current vs. Receiver Output High Voltage OUTPUT VOLTAGE (V) Figure ...
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T TxD RxD 4 CH1 2.00V CH2 2.00V M 200ns CH3 2.00V CH4 2.00V T 47.80% Figure 15. ADM2487E Driver/Receiver Propagation Delay, Low to High ( Ω 100 ...
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ADM2482E/ADM2487E TEST CIRCUITS Y TxD V OD2 Z Figure 19. Driver Voltage Measurement Y TxD V 60Ω OD3 Z Figure 20. Driver Voltage Measurement Y TxD R DIFF Z Figure 21. Driver Propagation Delay ...
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SWITCHING CHARACTERISTICS V DD1 DD1 DD1 0V t DPLH Z 1/ – DSKEW DPLH +V O 90% POINT – V DIFF (Y) V DIFF 10% ...
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ADM2482E/ADM2487E CIRCUIT DESCRIPTION ELECTRICAL ISOLATION In the ADM2482E/ADM2487E, electrical isolation is imple- mented on the logic side of the interface. Therefore, the part has two main sections: a digital isolation section and a transceiver section (see Figure 30). Driver input ...
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THERMAL SHUTDOWN The ADM2482E/ADM2487E contain thermal shutdown circuitry that protects the parts from excessive power dissipa- tion during fault conditions. Shorting the driver outputs to a low impedance source can result in high driver currents. The thermal sensing circuitry detects ...
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ADM2482E/ADM2487E APPLICATIONS INFORMATION PRINTED CIRCUIT BOARD LAYOUT The isolated RS-485 transceiver of the ADM2482E/ADM2487E requires no external interface circuitry for the logic interfaces. Power supply bypassing is required at the input and output supply pins (see Figure 33). Bypass capacitors ...
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TYPICAL APPLICATIONS Figure 35 and Figure 36 show typical applications of the ADM2482E/ADM2487E in half-duplex and full-duplex RS-485 network configurations 256 transceivers can be connected to the RS-485 bus. To minimize reflections, the ADM2482E/ ADM2487E A RxD R ...
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... Rev Page 45° 8° 0° 1.27 (0.0500) 0.40 (0.0157) Package Description 16-Lead SOIC_W 16-Lead SOIC_W 16-Lead SOIC_W 16-Lead SOIC_W Evaluation Board, 3.3 V Supply Evaluation Board Supply Evaluation Board, 3.3 V Supply Evaluation Board Supply Package Option RW-16 RW-16 RW-16 RW-16 ...
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NOTES Rev Page ADM2482E/ADM2487E ...
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ADM2482E/ADM2487E NOTES ©2008–2009 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D07379-0-2/09(A) Rev Page ...