The ADuM3470/ADuM3471/ADuM3472/ADuM3473/ADuM3474 devices are quad-channel, digital isolators with an integrated PWM controller and transformer driver for an isolated DC/DC converter. Based on the Analog Devices, Inc., iCoupler® technology, the DC/DC converter provides up to 2 W of regulated, isolated power at 3.3 V to 24 V from a 5.0 V input supply or from a 3.3 V supply. This eliminates the need for a separate, isolated DC/DC converter in 2 W isolated designs. The iCoupler chip-scale transformer technology is used to isolate the logic signals, and the integrated transformer driver with isolated secondary side control provides higher efficiency for the isolated DC/DC converter. The result is a small form factor, total isolation solution.
The ADuM347x isolators provide four independent isolation channels in a variety of channel configurations and data rates.
|Title||Content Type||File Type|
|ADuM3470/ADuM3471/ADuM3472/ADuM3473/ADuM3474: PWM Controller and Transformer Driver with Quad-Channel Isolators Data Sheet (Rev B, 05/2014) (pdf, 741 kB)||Data Sheets|
|CN0292: Completely Isolated, Robust, 4-Channel, Multiplexed Data Acquisition System for Industrial Level Signals (pdf, 500 kB)||Circuit Note|
|CN0278: Complete 4 mA to 20 mA HART Solution with Additional Voltage Output Capability (pdf, 442 kB)||Circuit Note|
|CN-0254: Low Cost, 16-Bit, 250 kSPS, 8-Channel, Isolated Data Acquisition System (pdf, 394 kB)||Circuit Note|
|CN-0321: Fully Isolated, Single Channel Voltage and 4 mA to 20 mA Output with HART Connectivity (pdf, 282 kB)||Circuit Note|
|CN-0233: 16-Bit Isolated Industrial Voltage and Current Output DAC with Isolated DC-to-DC Supplies (pdf, 197 kB)||Circuit Note|
ADuM347x Isolated DC/DC Controller Overview
ADuM347x: Quad-Channel Digital Isolator with PWM Controller
iCoupler® Digital Isolator by Analog Devices. The ADuM347x is the industry's first digital isolator with an integrated transformer driver and PWM (pulse-width-modulation) controller in a sigle 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-197: iCoupler ADuM347x Quad-Channel Isolators with Integrated Transformer Driver (pdf, 653 kB)||User Guides|
Inside iCoupler® Technology: ADuM347x PWM Controller and Transformer Driver with Quad-Channel Isolators Design Summary
By Flow Zhao, Design Engineer
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
|Digital Isolator Product Selection and Resource Guide (pdf, 640 kB)||Product Selection Guide|
|Analog Devices Achieves Major Milestone by Shipping 1 Billionth Channel of iCoupler Digital Isolation (19 Sep 2013)||Press Releases||HTML|
|ADuM347x Family: PWM Controller and Transformer Drivers with Quad-Channel Isolators||Overview||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.