The ADuM440x are 4-channel digital isolators based on the Analog Devices, Inc., iCoupler® technology. Combining high speed CMOS and monolithic air core transformer technology, these isolation components provide outstanding performance characteristics that are superior to the alternatives, such as optocoupler devices and other integrated couplers.
The ADuM440x isolators provide four independent isolation channels in a variety of channel configurations and data rates (see the Ordering Guide). All models operate with the supply voltage on either side ranging from 2.7 V to 5.5 V, providing compatibility with lower voltage systems as well as enabling a voltage translation functionality across the isolation barrier. The ADuM440x isolators have a patented refresh feature that ensures dc correctness in the absence of input logic transitions and during power-up/power-down conditions.
This family of isolators, like many Analog Devices isolators, offers very low power consumption, consuming one-tenth to one-sixth the power of comparable isolators at comparable data rates up to 10 Mbps. All models of the ADuM440x provide low pulse width distortion (<2 ns for C grade). In addition, every model has an input glitch filter to protect against extraneous noise disturbances.
The ADuM440x contain circuit and layout enhancements to help achieve system-level IEC 61000-4-x compliance (ESD/burst/surge). The precise capability in these tests for the ADuM440x are 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.
For additional ADI Healthcare Products and related information, please visit www.analog.com/healthcare.
|Title||Content Type||File Type|
|ADuM4400/ADuM4401/ADuM4402: 5 kV RMS Quad-Channel Digital Isolators Data Sheet (Rev C, 02/2012) (pdf, 450 kB)||Data Sheets|
|ADuM4400W/ADuM4401W/ADuM4402W: 5 kV RMS Quad-Channel Digital Isolators Data Sheet (Rev 0, 11/2012) (pdf, 551 kB)||Data Sheets|
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-042: Evaluating 16-Lead SOIC and 16-Lead QSOP Digital Isolators User Guide (pdf, 504 kB)||User Guides|
|Creepage Requirements for Medical Applications (pdf, 588 kB)||Technical Articles|
Medical Devices Demand Stringent Isolation Techniques
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
iCoupler® Products with isoPower™ Technology: Signal and Power Transfer Across Isolation Barrier Using Microtransformers
(pdf, 1306 kB)
By Baoxing Chen
Isolation in Medical Applications
by Rich Ghiorse and Steve Ranta, Analog Devices, Inc. (Power Electronics-Europe, 7/2005)
|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|
|Analog Devices Achieves Major Milestone by Shipping 1 Billionth Channel of iCoupler Digital Isolation (19 Sep 2013)||Press Releases||HTML|
EE Times Names ACE Finalists
(EE Times, 1/15/2007)
ADuM1300/01/1400/01/02: Multi-Channel Digital Isolators for High-Voltage Industrial Applications
... New iCoupler devices reduce per-channel costs and offer superior alternative to optocoupler solutions. (analogZONE, powerZONE Products for the week of May 26, 2003)
|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
|See what 40 years of data acquisition expertise can do for your instrumentation designs.||Overview||HTML|
|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.
|RAQs index||Rarely Asked Questions||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|
|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.