Quad-Channel Isolators with Integrated DC/DC Converter (0/4 channel directionality)
The ADuM5401/ADuM5402/ADuM5403/ADuM5404 devices are quad-channel digital isolators with isoPower®, an integrated, isolated dc-to-dc converter. Based on the Analog Devices, Inc., iCoupler® technology, the dc-to-dc converter provides up to 500 mW of regulated, isolated power at either 5.0 V from a 5.0 V input supply or 3.3 V from a 3.3 V supply. This eliminates the need for a separate, isolated dc-to-dc converter in low power, isolated designs. The iCoupler chip scale transformer technology is used to isolate both the logic signals and the magnetic components of the dc-to-dc converter. The result is a small form factor, total isolation solution.
The ADuM5401/ADuM5402/ADuM5403/ADuM5404 isolators provide four independent isolation channels in a variety of channel configurations and data rates (see the Ordering Guide for more information).
isoPower uses high frequency switching elements to transfer power through its transformer. Special care must be taken during printed circuit board (PCB) layout to meet emissions standards. Refer to Application Note AN-0971 for details on board layout considerations.
- RS-232/RS-422/RS-485 transceivers
- Industrial field bus isolation
- Power supply startup bias and gate drives
- Isolated sensor interfaces
- Industrial PLCs
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
Supported iCoupler® Products
Safety and Regulatory Compliance
Safety and Regulatory Compliance Information
The iCoupler® family of digital isolation products have been tested and approved by various regulatory agencies,...
Product Selection Guide
Digital Isolator Product Selection and Resource Guide
Inside iCoupler® Technology:ADuM347x PWM Controller and Transformer Driver with
By Flow Zhao, Design Engineer
NAppkin Note: Lowering the Power of the ADuM524x
By Mark Cantrell, Senior Applications Engineer
Micro-Transformers Provide Signal and Power Isolation for Hybrid Electric...
By Baoxing Chen, Sr. Staff Engineer, Analog Devices, Inc.
iCoupler® Products with isoPower™ Technology: Signal and Power Transfer...
By Baoxing Chen
High Speed Digital Isolators Using Microscale On-Chip Transformers
By Baoxing Chen, John Wynne, and Ronn Kliger
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal.
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.