ADM2682EBRIZ-RL7 AD [Analog Devices], ADM2682EBRIZ-RL7 Datasheet
ADM2682EBRIZ-RL7
Available stocks
Related parts for ADM2682EBRIZ-RL7
ADM2682EBRIZ-RL7 Summary of contents
Page 1
Preliminary Technical Data 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), ...
Page 2
ADM2682E/ADM2687E TABLE OF CONTENTS Features .............................................................................................. 1 Applications ....................................................................................... 1 Functional Block Diagram .............................................................. 1 General Description ......................................................................... 1 Specifications ..................................................................................... 3 ADM2682E Timing Specifications ............................................ 4 ADM2687E Timing Specifications ............................................ 4 ADM2682E/ADM2687E Package Characteristics ................... 4 ADM2682E/ADM2687E Regulatory Information ...
Page 3
Preliminary Technical Data 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 ...
Page 4
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 ...
Page 5
Preliminary Technical Data ADM2682E/ADM2687E REGULATORY INFORMATION Table 5. ADM2682E/ADM2687E Approvals Organization Approval Type UL (Pending recognized under the UL 1577 Component Recognition Program of Underwriters Laboratories, Inc. Single Protection, 5000 V rms isolation voltage In accordance with UL ...
Page 6
ADM2682E/ADM2687E ADM2682E/ADM2687E VDE 0884 INSULATION CHARACTERISTICS (PENDING) This isolator is suitable for reinforced 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 ...
Page 7
Preliminary Technical Data ABSOLUTE MAXIMUM RATINGS T = 25°C, unless otherwise noted. All voltages are relative to A their respective ground. Table 8. Parameter Digital Input Voltage (DE, RE ��� , TxD Digital Output Voltage (RxD) Driver Output/Receiver ...
Page 8
ADM2682E/ADM2687E PIN CONFIGURATION AND FUNCTION DESCRIPTIONS Table 10. Pin Function Description 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 ...
Page 9
Preliminary Technical Data TYPICAL PERFORMANCE CHARACTERISTICS 180 160 R = 54Ω L 140 120 R = 120Ω L 100 80 NO LOAD –40 – TEMPERATURE (°C) Figure 3. ADM2682E Supply Current (I (Data Rate ...
Page 10
ADM2682E/ADM2687E TxD CH1 2.0V CH2 2.0V M10.00ns CH3 2.0V Figure 9. ADM2682E Driver Propagation Delay TxD CH1 2.0V CH2 2.0V M200ns CH3 2.0V Figure 10. ADM2687E Driver Propagation Delay 0 –10 –20 ...
Page 11
Preliminary Technical Data RxD 3 CH1 2.0V CH2 2.0V M10.00ns CH3 2.0V Figure 15. ADM2682E Receiver Propagation Delay RxD 3 CH1 2.0V CH2 2.0V M10.00ns CH3 2.0V Figure 16. ADM2687E Receiver Propagation Delay 98 ...
Page 12
ADM2682E/ADM2687E 54Ω 120Ω LOAD –40 – TEMPERATURE (°C) Figure 21. ADM2682E Isolated Supply Current vs. Temperature (V = 3.3 V, Data Rate = 16 ...
Page 13
Preliminary Technical Data 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 ...
Page 14
ADM2682E/ADM2687E SWITCHING CHARACTERISTICS DPLH Z 1/ 90% POINT – V DIFF (Y) V DIFF 10% POINT – ...
Page 15
Preliminary Technical Data 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 transceiver section (see ...
Page 16
ADM2682E/ADM2687E DC CORRECTNESS AND MAGNETIC FIELD IMMUNITY The digital signals transmit across the isolation barrier using iCoupler technology. This technique uses chip-scale transformer windings to couple the digital signals magnetically from one side of the barrier to the other. Digital ...
Page 17
Preliminary Technical Data 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 ...
Page 18
ADM2682E/ADM2687E voltages listed in Table 9 can be applied while maintaining the 50-year minimum lifetime, provided the voltage conforms to either the unipolar voltage cases. Any crossinsulation voltage waveform that does not conform to Figure 37 or ...
Page 19
Preliminary Technical Data ADM2682E/ ADM2687E A RxD TxD D Y ADM2682E/ ADM2687E NOTES EQUAL TO THE CHARACTERISTIC IMPEDANCE OF THE CABLE ISOLATION NOT SHOWN. MASTER A R RxD ...
Page 20
... REFERENCE ONLY AND ARE NOT APPROPRIATE FOR USE IN DESIGN. Figure 42. 16-Lead Standard Small Outline Package with Increased Creepage [SOIC_IC] ORDERING GUIDE Model Data Rate (Mbps) 1 ADM2682EBRIZ 16 ADM2682EBRIZ-RL7 16 ADM2687EBRIZ 0.5 ADM2687EBRIZ-RL7 0 RoHS Compliant Part. ©2011 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners ...