The ADuM3220 is a 4 A isolated, dual-channel gate driver based on the Analog Devices, Inc., iCoupler® technology. Combining high speed CMOS and monolithic transformer technology, this isolation component provides outstanding performance characteristics superior to the alternatives, such as the combination of pulse transformers and gate drivers.
The ADuM3220 isolator provides two independent isolation channels. It has a maximum propagation delay of 60 ns and 5 ns channel-to-channel matching. In comparison to gate drivers employing high voltage level translation methodologies, the ADuM3220 offers the benefit of true, galvanic isolation between the input and each output, enabling voltage translation across the isolation barrier. The ADuM3220 has shoot-through protection logic and a default output low characteristic as required for gate drive applications. It operates with an input supply voltage ranging from 3.0 V to 5.5 V, providing compat-ibility with lower voltage systems. The outputs may be operated at supply voltages from 5 V to 18 V, which supports typical gate drive voltages for synchronous dc/dc converters.
The ADuM3220 isolator contains various circuit and layout enhancements to provide increased capability relative to system-level IEC 61000-4-x testing (ESD, burst, and surge). The precise capability in these tests is strongly determined by the design and layout of the user’s board or module. For more information, see the AN-793 Application Note, ESD/Latch-Up Considerations with iCoupler Isolation Products. The ADuM3220 specifies the junction temperature from −40°C to 125°C.Applications
|Title||Content Type||File Type|
|ADuM3220/ADuM3221: Isolated 4 A Dual-Channel Gate Driver Data Sheet (Rev C, 10/2012) (pdf, 669 kB)||Data Sheets|
|AN-0971: Recommendations for Control of Radiated Emissions with isoPower Devices (pdf, 406 kB)||Application Notes|
|AN-913: Isolating I2C Interfaces (pdf, 280 kB)||Application Notes|
|AN-727: iCoupler® Isolation in RS-485 Applications (pdf, 282 kB)||Application Notes|
|AN-740: iCoupler® Isolation in RS-232 Applications (pdf, 716 kB)||Application Notes|
|AN-770: iCoupler® Isolation in CAN Bus Applications (pdf, 234 kB)||Application Notes|
|AN-793: ESD/Latch-Up Considerations with iCoupler® Isolation Products (pdf, 246 kB)||Application Notes|
|AN-825: Power Supply Considerations in iCoupler Isolation Products (pdf, 181 kB)||Application Notes|
ADuM322x: iCoupler®, Dual Channel Gate Driver
The ADuM322x are dual-channel gate drivers designed for use in synchronous DC/DC converters. The family of devices integrates both iCoupler® digital isolator technology and 4A peak current gate drivers in a single, small SO-8 package.
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.
|UG-217: iCoupler ADuM322XEBZ, 4 A Output-Isolated Gate Driver Evaluation Board (pdf, 148 kB)||User Guides|
ADuM3220 4A Gate Driver for Synchronous DC/DC Conversion
(pdf, 346 kB)
By Brian Kennedy, Applications Engineer
|Inside iCoupler® Technology: Driving an H Bridge with ADuM3220 Isolated Gate Drivers (pdf, 140 kB)||Technical Articles|
|MS-2127: Designing with iCoupler Digital Isolators in Solar PV Inverters (pdf, 141 kB)||Technical Articles|
Inside iCoupler® Technology:ADuM347x PWM Controller and Transformer Driver with Quad-Channel Isolators Design Summary
(pdf, 291 kB)
By Flow Zhao, Design Engineer
NAppkin Note: Lowering the Power of the ADuM524x
(pdf, 223 kB)
By Mark Cantrell, Senior Applications Engineer
Micro-Transformers Provide Signal and Power Isolation for Hybrid Electric Vehicles
(pdf, 234 kB)
By Baoxing Chen, Sr. Staff Engineer, Analog Devices, Inc.
High Speed Digital Isolators Using Microscale On-Chip Transformers
(pdf, 2717 kB)
By Baoxing Chen, John Wynne, and Ronn Kliger
Medical Devices Demand Stringent Isolation Techniques
|Analog Devices Achieves Major Milestone by Shipping 1 Billionth Channel of iCoupler Digital Isolation (19 Sep 2013)||Press Releases||HTML|
|Digital Isolator Product Selection and Resource Guide (pdf, 640 kB)||Product Selection Guide|
|Automotive Grade Digital Isolators - ADuM120xW/ADuM130xW/ADuM140xW (2008) (pdf, 1153 kB)||Product Selection Guide|
|iCoupler Isolation Provides Size, Cost, and Thermal Improvements Relative to Optocouplers (pdf, 67 kB)||Overview|
|Agilent/NVE GMR Isolators−Performance Comparison to Analog Devices iCoupler (pdf, 378 kB)||Overview|
ADuM2400/ADuM2401/ADuM2402 Quad-Channel Digital Isolators
(pdf, 184 kB)
The ADuM240x family of quad-channel isolators provides 5kV isolation and eliminates the need for multiple optocouplers and their accompanying external discrete components.
ADuM130x/ADuM140x Triple/Quad Digital Isolators
(pdf, 126 kB)
The ADuM130x/ADuM140x family of triple-/quad-channel isolators eliminates the need for multiple optocouplers and their accompanying external discrete components.
ADuM125x/ADuM225x Dual-Channel, Hot-Swappable, I2C® Bidirectional Digital Isolators with up to 5 kV Isolation
(pdf, 1493 kB)
The ADuM125x/ADuM225x are dual-channel bi-directional I2C digital isolators that are hot-swappable and capable of data rates up to 1MHz.
|Leading Inside Advertorials: Data and Power Isolation in One Package Provides Total Isolation Solution (pdf, 77 kB)||Overview|
2008 Medical Solution Profile
(pdf, 126 kB)
High Performance ICs for Medical Imaging, Patient Monitoring, and Instrumentation
|iCoupler Digital Isolators Qualified for Automotive Applications||Overview||HTML|
|isoPower® - Isolated dc-to-dc Power in the smallest Package||Overview||HTML|
ICs for Programmable Logic Control and Distributed Control Systems
(pdf, 976 kB)
Analog Devices leadership in industrial IC technology, with the development of the iCMOS™ and iPolar™ processes, has uniquely defined high voltage and low voltage integration to deliver smaller, higher performance, and more cost effective ICs for industrial systems.
|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|
|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 is iCoupler technology?||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|
|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|
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.