ADM2582E Analog Devices, ADM2582E Datasheet
ADM2582E
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ADM2582E Summary of contents
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... DECODE RE GND 1 The ADM2582E/ADM2587E driver has an active high enable. An active low receiver enable is also provided that causes the receiver output to enter a high impedance state when disabled. The devices have current limiting and thermal shutdown features to protect against output short circuits and situations where bus contention may cause excessive power dissipation ...
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... Functional Block Diagram .............................................................. 1 General Description ......................................................................... 1 Revision History ............................................................................... 2 Specifications ..................................................................................... 3 ADM2582E Timing Specifications ............................................ 4 ADM2587E Timing Specifications ............................................ 4 ADM2582E/ADM2587E Package Characteristics ................... 4 ADM2582E/ADM2587E Regulatory Information .................. 5 ADM2582E/ADM2587E Insulation and Safety-Related Specifications ................................................................................ 5 ADM2582E/ADM2587E VDE 0884 Insulation Characteristics (Pending) ............................................................ 5 Absolute Maximum Ratings ............................................................ 6 ESD Caution .................................................................................. 6 Pin Configuration and Function Descriptions ............................. 7 Typical Performance Characteristics ...
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... 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 ADM2587E SUPPLY CURRENT Data Rate ≤ 500 kbps ADM2582E SUPPLY CURRENT Data Rate = 16 Mbps ISOLATED SUPPLY VOLTAGE DRIVER Differential Outputs Differential Output Voltage, Loaded Δ ...
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... RPHL Output Skew t SKEW Enable Time Disable Time ADM2582E/ADM2587E 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: short together Pin 1 to Pin 10 and short together Pin 11 to Pin 20. ...
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... Case Temperature Input Current Output Current Insulation Resistance Notes In accordance with UL 1577, each ADM2582E/ADM2587E is proof tested by applying an insulation test voltage ≥ 3000 V rms for 1 second. In accordance with VDE 0884-10, each ADM2582E/ADM2587E is proof tested by applying an insulation test voltage ≥ 1050 V Symbol Value ...
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... ADM2582E/ADM2587E 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 Storage Temperature Range ESD (Human Body Model) on ...
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... (Not to Scale) TxD GND GND ISOOUT GND GND NOTES 1. PIN 12 AND PIN 19 MUST BE CONNECTED EXTERNALLY. Figure 2. Pin Configuration Rev Page ADM2582E/ADM2587E . It is recommended that a reservoir ISOIN . It is recommended that a ISOOUT ...
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... TEMPERATURE (°C) Figure 5. ADM2587E Supply Current (I (Data Rate = 500 kbps vs. Temperature Figure 7. ADM2582E Differential Driver Propagation Delay vs. Temperature ) vs. Temperature Figure 8. ADM2587E Differential Driver Propagation Delay vs. Temperature ) vs. Temperature Rev Page ...
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... TxD CH1 2.0V CH2 2.0V M10.00ns CH3 2.0V Figure 9. ADM2582E Driver Propagation Delay TxD CH1 2.0V CH2 2.0V M200ns CH3 2.0V Figure 10. ADM2587E Driver Propagation Delay 0 –10 –20 –30 –40 –50 –60 – OUTPUT VOLTAGE (V) Figure 11. Receiver Output Current vs. Receiver Output High Voltage ...
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... TEMPERATURE (°C) Figure 19. ADM2582E Isolated Supply Voltage vs. Temperature (V = 3.3 V, Data Rate = 16 Mbps) CC 3.36 3.35 3.34 3.33 3.32 3.31 3.30 3.29 NO LOAD 3.28 R 3.27 R 3.26 –40 – TEMPERATURE (°C) Figure 20. ADM2582E Isolated Supply Voltage vs. Temperature ( Data Rate = 16 Mbps 120Ω 54Ω 120Ω 54Ω ...
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... R = 54Ω 120Ω LOAD –40 – TEMPERATURE (°C) Figure 21. ADM2582E Isolated Supply Current vs. Temperature (V = 3.3 V, Data Rate = 16 Mbps –40 Figure 22. ADM2587E Isolated Supply Current vs. Temperature Rev Page ADM2582E/ADM2587E R = 54Ω ...
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... ADM2582E/ADM2587E TEST CIRCUITS Y TxD V OD2 Z Figure 23. Driver Voltage Measurement Y V TxD 60Ω OD3 Z Figure 24. Driver Voltage Measurement Y TxD Figure 25. Driver Propagation Delay 375Ω 375Ω V TEST Rev Page OUT 110Ω ...
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... RPLH RxD 1. – SKEW RPLH Figure 30. Receiver Propagation Delay t DPHL 90% POINT (Z) 10% POINT RPHL V OH 1.5V | RPHL Rev Page ADM2582E/ADM2587E 0. Figure 31. Driver Enable/Disable Timing 0.5V 0. 1.5V OUTPUT LOW ...
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... POWER ISOLATION The ADM2582E/ADM2587E power isolation is implemented using an isoPower integrated isolated dc-to-dc converter. The dc-to-dc converter section of the ADM2582E/ADM2587E works on principles that are common to most modern power supplies secondary side controller architecture with isolated pulse- width modulation (PWM) feedback. V ...
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... N is the number of turns in the receiving coil the radius of the nth turn in the receiving coil (cm). n Given the geometry of the receiving coil in the ADM2582E/ ADM2587E and an imposed requirement that the induced voltage be, at most, 50% of the 0.5 V margin at the decoder, a maximum allowable magnetic field is calculated as shown in Figure 33 ...
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... Power supply bypassing is required at the input and output supply pins (see Figure 35). The power supply section of the ADM2582E/ ADM2587E uses an 180 MHz oscillator frequency to pass power efficiently through its chip-scale transformers. In addition, the normal operation of the data section of the iCoupler introduces switching transients on the power supply pins ...
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... ISOOUT External Load Current (mA The ADM2582E typically has no current available externally on V ISOOUT When external current is drawn from the V an increased risk of generating radiated emissions due to the high frequency switching elements used in the isoPower dc to- dc converter. Special care must be taken during PCB layout to meet emissions standards ...
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... ADM2582E/ADM2587E 3.3V/5V POWER SUPPLY 100nF 10µF 100nF V CC MICROCONTROLLER AND UART GND 1 Figure example of a circuit diagram using the ADM2582E/ADM2587E. 10nF V CC iso Power DC-TO-DC CONVERTER OSCILLATOR RECTIFIER REGULATOR DIGITAL ISOLATION i Coupler TxD ENCODE DECODE DE ENCODE DECODE RxD DECODE ENCODE RE ADM2582E/ADM2587E GND ...
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... TYPICAL APPLICATIONS Figure 41 and Figure 42 show typical applications of the ADM2582E/ ADM2587E in half duplex and full duplex RS-485 network configurations 256 transceivers can be connected to the RS-485 bus. To minimize reflections, terminate the line at the ADM2582E/ ADM2587E A RxD TxD D Y ADM2582E/ ...
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... D08111-0-9/09(0) Rev Page 45° 8° 0° 1.27 (0.0500) 0.40 (0.0157) Package Description Package Option 20-Lead SOIC_W RW-20 20-Lead SOIC_W RW-20 20-Lead SOIC_W RW-20 20-Lead SOIC_W RW-20 ADM2582E Evaluation Board ADM2587E Evaluation Board ...