adum1251 Analog Devices, Inc., adum1251 Datasheet
adum1251
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adum1251 Summary of contents
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... GND 4 1 Figure 2. ADuM1251 Both the ADuM1250 and ADuM1251 contain hot swap circuitry to prevent glitching data when an unpowered card is inserted onto an active bus. These isolators are based on iCoupler® chip scale transformer technology from Analog Devices, Inc. iCoupler is a magnetic isolation technology with functional, performance, size, and power consumption advantages as compared to optocouplers ...
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... ADuM1250/ADuM1251 TABLE OF CONTENTS Features .............................................................................................. 1 Applications....................................................................................... 1 Functional Block Diagrams............................................................. 1 General Description ......................................................................... 1 Revision History ............................................................................... 2 Specifications..................................................................................... 3 Electrical Characteristics............................................................. 3 Package Characteristics ............................................................... 5 Regulatory Information............................................................... 5 Insulation and Safety-Related Specifications............................ 5 DIN V VDE V 0884-10 (VDE V 0884-10) Insulation Characteristics .............................................................................. 6 Recommended Operating Conditions ...................................... 6 REVISION HISTORY 6/07—Rev Rev. A Updated VDE Certification Throughout ...................................... 1 Changes to Features and Note 1 ...
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... SDA1T SCL1T 600 SDA1OL SCL1OL 600 ΔV , ΔV 50 SDA1 SCL1 SDA2IL SCL2IL 0.7 V SDA2IH SCL2IH DD2 SDA2OL SCL2OL Rev Page ADuM1250/ADuM1251 Max Unit Test Conditions 5 DD1 5 DD2 3 3.3 V DD1 3 3.3 V DD2 6 DD1 4 ...
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... ADuM1250/ADuM1251 1 AC Specifications All minimum/maximum specifications apply over the entire recommended operating range, unless otherwise noted. All typical specifications are 25° and V A DD1 Table 2. Parameter MAXIMUM FREQUENCY OUTPUT FALL TIME 5 V Operation Side 1 Output (0 0.9 V) DD1 Side 2 Output (0 ...
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... IC Junction-to-Case Thermal Resistance, Side 2 1 The device is considered a 2-terminal device; Pin 1 through Pin 4 are shorted together, and Pin 5 through Pin 8 are shorted together. REGULATORY INFORMATION The ADuM1250/ADuM1251 have been approved by the organizations listed in Table 4. Table 4. UL Recognized under 1577 Component ...
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... ADuM1250/ADuM1251 DIN V VDE V 0884-10 (VDE V 0884-10) INSULATION CHARACTERISTICS This isolator is suitable for reinforced isolation only within the safety limit data. Maintenance of the safety data is ensured by protective circuits. The * marking on the package denotes DIN V VDE V 0884-10 approval for a 560 V peak working voltage. ...
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... This is a stress rating only; functional operation of the device at these or any other conditions above those indicated in the operational section of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. + 0.5 V DD1 ESD CAUTION + 0.5 V DD2 Rev Page ADuM1250/ADuM1251 ...
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... Table 9. ADuM1250 Pin Function Descriptions Pin No. Mnemonic 1 V DD1 2 SDA 1 3 SCL 1 4 GND 1 5 GND 2 6 SCL 2 7 SDA DD2 Table 10. ADuM1251 Pin Function Descriptions Pin No. Mnemonic 1 V DD1 2 SDA 1 3 SCL 1 4 GND 1 5 GND 2 6 SCL 2 7 SDA DD2 ...
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... TEST CONDITIONS DD1 DECODE ENCODE 1 SDA 1 ENCODE DECODE 2 SCL 1 DECODE ENCODE 3 GND 1 ENCODE DECODE 4 Figure 5. Timing Test Diagram Rev Page ADuM1250/ADuM1251 V DD2 SDA 2 7 SCL GND ...
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... However, since the Side 1 pin has a modified output level/input threshold, this side of the ADuM1250/ADuM1251 can only communicate with devices conforming to the I other words, Side 2 of the ADuM1250/ADuM1251 compliant, while Side 1 is only I C-compatible. The output logic low levels are independent of the V V voltages ...
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... Care should be taken in the layout of such traces to avoid this possibility. 10M 100M Rev Page ADuM1250/ADuM1251 DISTANCE = 1m DISTANCE = 100mm 1 DISTANCE = 5mm 1k 10k ...
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... Number of Inputs, Model V Side DD1 ADuM1250ARZ ADuM1250ARZ-RL7 2 1 ADuM1251ARZ 2 1 ADuM1251ARZ-RL7 RoHS Compliant Part. ©2006–2007 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. 5.00 (0.1968) 4.80 (0.1890 6.20 (0.2441) 4.00 (0.1574) 1 5.80 (0.2284) 3.80 (0.1497 ...