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ADUM3440:  Quad Channel, High Speed Digital Isolators

Product Details


The ADuM344x are four channel, digital isolators based on the Analog Devices, Inc., iCoupler® technology supporting data rates up to 150 Mbps. Combining high speed CMOS and monolithic air core transformer technology, these isolation components provide outstanding performance characteristics superior to alternatives such as optocoupler devices.

By avoiding the use of LEDs and photodiodes, iCoupler devices remove the design difficulties commonly associated with optocouplers. The typical optocoupler concerns regarding uncertain current transfer ratios, nonlinear transfer functions, and temperature and lifetime effects are eliminated with the simple iCoupler digital interfaces and stable performance characteristics. The need for external drivers and other discrete components is eliminated with these iCoupler products.

Furthermore, iCoupler devices consume one-tenth to one-sixth the power of optocouplers at comparable signal data rates.

The ADuM344x isolators provide four independent isolation channels in a variety of channel configurations (see the Ordering Guide). The ADuM344x operates with the supply voltage on either side ranging from 3.0 V to 5.5 V, providing compatibility with lower voltage systems as well as enabling voltage translation functionality across the isolation barrier. In addition, the ADuM344x provides low pulse width distortion and tight channel-to-channel matching. Unlike other opto-coupler alternatives, the ADuM344x isolators have a patented refresh feature that ensures dc correctness in the absence of input logic transitions and during the power-up/power-down condition.

Applications

  • High speed multichannel isolation
  • SPI interface/data converter isolation
  • Instrumentation

FEATURES and BENEFITS

  • Low power operation
  • Bidirectional communication
  • 3.3 V/5 V level translation
  • High temperature operation: 105°C
  • High data rate: dc to 150 Mbps (NRZ)
  • Precise timing characteristics
  • High common-mode transient immunity: >25 kV/μs
  • See Data Sheet for Additional Information

Functional Block Diagram for ADuM3440

Documentation

Title Content Type File Type
ADuM3440/ADuM3441/ADuM3442: Quad Channel, High Speed Digital Isolators Data Sheet (Rev D, 02/2012) (pdf, 542 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
UG-042: Evaluating 16-Lead SOIC and 16-Lead QSOP Digital Isolators User Guide  (pdf, 504 kB) User Guides PDF
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
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

Design Tools,Models,Drivers & Software

Title Content Type File Type
ADuM3440 IBIS Model  (ibs) IBIS Models IBS

Evaluation Kits & Symbols & Footprints

Evaluation Boards & KitsView the Evaluation Boards and Kits page for documentation and purchasing

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

ADUM3440 Model Options
Model Package Pins Temp.
Range
Packing,
Qty
Price*(100-499) Price*1000 pcs RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
ADUM3440CRWZ Status: Production 16 ld SOIC - Wide 16 Ind Tube, 47 $2.91 $2.24 Y  Material Info PCN Purchase Sample
ADUM3440CRWZ-RL Status: Production 16 ld SOIC - Wide 16 Ind Reel, 1000 - $2.24 Y  Material Info PCN Purchase
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.

EVAL-ADUMQS
Model Description Price RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
EVAL-ADUMQSEBZ Status: Production Evaluation Board $25.00 Yes -

Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.

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