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ADUM1420:  Quad Isolated Precision Gate Driver, 0.1 A Output

Product Details

The ADuM1420 is a quad isolated gate driver that employs Analog Devices, Inc. iCoupler® technology to provide independent and isolated high-side and low-side outputs.

In comparison to gate drivers employing high voltage level translation methodologies, the ADuM1420 offers the benefit of true, galvanic isolation between the input and each of the four outputs. Each output can be operated up to ±700 V peak relative to the input, thereby supporting low-side switching to negative voltages. The differential voltage between any two outputs can be as high as 700 V peak.


  • Plasma display modules

    • Quad outputs isolated from input and each other
      Input-to-output differential: ±700 V peak
      Output-to-output differential: ±700 V peak
    • 0.1 A peak output current
    • High frequency operation: 5 MHz maximum
    • High common-mode transient immunity: >75 kV/µs
    • High temperature operation: 105°C
    • Wide body, 28-lead SOIC

    Functional Block Diagram for ADuM1420


    Title Content Type File Type
    ADuM1420: Quad Isolated Precision Gate Driver, 0.1 A Output Data Sheet (Rev A, 02/2008) (pdf, 330 kB) Data Sheets PDF
    AN-0971: Recommendations for Control of Radiated Emissions with isoPower Devices  (pdf, 406 kB) Application Notes PDF
    AN-913: Isolating I2C Interfaces  (pdf, 280 kB) Application Notes PDF
    AN-727: iCoupler® Isolation in RS-485 Applications  (pdf, 282 kB) Application Notes PDF
    AN-740: iCoupler® Isolation in RS-232 Applications  (pdf, 716 kB) Application Notes PDF
    AN-770: iCoupler® Isolation in CAN Bus Applications  (pdf, 234 kB) Application Notes PDF
    AN-793: ESD/Latch-Up Considerations with iCoupler® Isolation Products  (pdf, 246 kB) Application Notes PDF
    AN-825: Power Supply Considerations in iCoupler Isolation Products  (pdf, 181 kB) Application Notes PDF
    Solving Isolation Challenges in Power Conversion Applications
    This webcast will present solutions to isolation challenges in power conversion applications. Among the topics to be discussed are the limitations of traditional methods of isolation (such as utilization of optocouplers and pulse transformers) vs. more efficient and cost effective solutions that utilize digital isolators. If you are currently using optocouplers and pulse transformers, this is a webcast you should attend.
    Webcasts WEBCAST
    Inside iCoupler® Technology:ADuM347x PWM Controller and Transformer Driver with Quad-Channel Isolators Design Summary  (pdf, 291 kB)
    By Flow Zhao, Design Engineer
    Technical Articles PDF
    NAppkin Note: Lowering the Power of the ADuM524x  (pdf, 223 kB)
    By Mark Cantrell, Senior Applications Engineer
    Technical Articles PDF
    Micro-Transformers Provide Signal and Power Isolation for Hybrid Electric Vehicles  (pdf, 234 kB)
    By Baoxing Chen, Sr. Staff Engineer, Analog Devices, Inc.
    Technical Articles PDF
    High Speed Digital Isolators Using Microscale On-Chip Transformers  (pdf, 2717 kB)
    By Baoxing Chen, John Wynne, and Ronn Kliger
    Technical Articles PDF
    iCoupler® Products with isoPower™ Technology: Signal and Power Transfer Across Isolation Barrier Using Microtransformers  (pdf, 1306 kB)
    By Baoxing Chen
    Technical Articles PDF
    Digital Isolator Product Selection and Resource Guide  (pdf, 640 kB) Product Selection Guide PDF
    Analog Devices Achieves Major Milestone by Shipping 1 Billionth Channel of iCoupler Digital Isolation (19 Sep 2013) Press Releases HTML
    2008 Medical Solution Profile  (pdf, 126 kB)
    High Performance ICs for Medical Imaging, Patient Monitoring, and Instrumentation
    Overview PDF
    iCoupler Digital Isolators Qualified for Automotive Applications Overview HTML
    isoPower® - Isolated dc-to-dc Power in the smallest Package Overview HTML
    How do I learn about new iCoupler products? FAQs/RAQs HTML
    Are iCoupler products Pb-free? FAQs/RAQs HTML
    Can I replace an optocoupler with an iCoupler product in an existing design? FAQs/RAQs HTML
    What are some of the distinguishing features of the iCoupler products? FAQs/RAQs HTML
    What communications protocols are supported by iCoupler products? FAQs/RAQs HTML
    What are the different types of iCoupler products? FAQs/RAQs HTML
    Do iCoupler products have VDE certification for reinforced insulation? FAQs/RAQs HTML
    With which regulatory standards do iCoupler products comply? FAQs/RAQs HTML
    How much isolation can iCoupler products provide? FAQs/RAQs HTML
    What are the benefits of iCoupler technology? FAQs/RAQs HTML
    What is iCoupler technology? FAQs/RAQs HTML
    What types of technologies have been used to provide isolation? FAQs/RAQs HTML
    What are optocouplers? What is optical isolation? FAQs/RAQs HTML
    What is capacitive isolation? FAQs/RAQs HTML
    What regulatory standards address isolation products? FAQs/RAQs HTML
    What is isolation? Why is it needed? FAQs/RAQs HTML
    What are common applications that use isolation? FAQs/RAQs HTML
    How is isolation specified? FAQs/RAQs HTML
    What is isolation rating? FAQs/RAQs HTML
    What is the relationship between working voltage and isolation rating? FAQs/RAQs HTML
    What is the difference between basic and double (or reinforced) insulation levels? FAQs/RAQs HTML
    What are transient immunity and common-mode rejection? FAQs/RAQs HTML
    What other parameters are important when considering an isolation device? FAQs/RAQs HTML
    RAQs index Rarely Asked Questions HTML
    Glossary of EE Terms Glossary HTML

    Evaluation Kits & Symbols & Footprints

    Symbols and Footprints— Analog Devices offers Symbols & Footprints which are compatible with a large set of today’s CAD systems for broader and easier support.

    SampleSample & Buy

    Price, packaging, availability

    ADUM1420 Model Options
    Price Table Help

    The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.

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