Application Notes (10)
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AN-1072: How to Successfully Apply Low Dropout Regulators
(pdf, 105 kB)
This application note reviews the basic LDO topology, explains key specifications, and shows the application of low dropout voltage regulators in systems. - AN-0971: Recommendations for Control of Radiated Emissions with isoPower Devices (pdf, 406 kB)
- AN-913: Isolating I2C Interfaces (pdf, 280 kB)
- AN-825: Power Supply Considerations in iCoupler Isolation Products (pdf, 181 kB)
- AN-793: ESD/Latch-Up Considerations with iCoupler® Isolation Products (pdf, 246 kB)
- AN-770: iCoupler® Isolation in CAN Bus Applications (pdf, 234 kB)
- AN-740: iCoupler® Isolation in RS-232 Applications (pdf, 716 kB)
- AN-727: iCoupler® Isolation in RS-485 Applications (pdf, 282 kB)
- AN-649: Using the Analog Devices Active Filter Design Tool (pdf, 5301 kB)
- AN-262: Low-Noise Low Drop-Out Regulator for Portable Equipment (pdf, 341 kB)
Circuit Note (7)
- CN-0159: Universal Serial Bus (USB) Cable Isolator Circuit (pdf, 381 kB)
- CN-0164: Low Power, Long Range, ISM Wireless Measuring Node (pdf, 172 kB)
- CN-0185: A Novel Analog-to-Analog Isolator Using an Isolated Sigma-Delta Modulator, Isolated DC-to-DC Converter, and Active Filter (pdf, 119 kB)
- CN-0187: Crest Factor, Peak, and RMS RF Power Measurement Circuit Optimized for High Speed, Low Power, and Single 3.3 V Supply (pdf, 163 kB)
- CN-0190: Robust, Multivoltage, High Efficiency, 25 W Universal Power Supply Module with 6 V to 14 V Input (pdf, 357 kB)
- CN-0216: Precision Weigh Scale Design Using the AD7791 24-Bit Sigma-Delta ADC with External ADA4528-1 Zero-Drift Amplifiers (pdf, 596 kB)
- CN0256: Isolated LVDS Interface Circuit (pdf, 210 kB)
Technical Articles (12)
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Digital Isolation Offers Compact, Low-Cost Solutions to Challenging Design Problems
(Analog Dialogue, Vol. 40, December 2006) -
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 -
Inside iCoupler® Technology:ADuM347x PWM Controller and Transformer Driver with Quad-Channel Isolators Design Summary
(pdf, 291 kB)
By Flow Zhao, Design Engineer -
Micro-Transformers Provide Signal and Power Isolation for Hybrid Electric Vehicles
(pdf, 234 kB)
By Baoxing Chen, Sr. Staff Engineer, Analog Devices, Inc. -
Microtransformer Isolation Benefits Digital Control
by Dr. Baoxing Chen, Analog Devices, Inc. (Power Electronics Technology, October 2008) - MS-2204: Power Blanking for Increased Accuracy Using isoPower Devices (pdf, 308 kB)
- MS-2210: Designing Power Supplies for High Speed ADC (pdf, 327 kB)
- MS-2400: Key Benefits of Input Overvoltage Protected Op Amps in Systems (pdf, 296 kB)
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NAppkin Note: Lowering the Power of the ADuM524x
(pdf, 223 kB)
By Mark Cantrell, Senior Applications Engineer -
Simplify USB Isolation in Medical Applications
This article discusses various ways of implementing isolation with USB. In particular, a new option, which allows simple, inexpensive isolation of peripheral devices—especially including the D+ and D– lines—increasing the usefulness of USB in medical and industrial applications.
(ECN, 3/31/2010) - The Fundamentals of LDO Design and Applications
ADIsim Design/Simulation Tools (2)
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ADIsimPower™ Voltage Regulator Design Tool
This expert design tool produces custom DC-DC converter designs in about a minute. The user enters 5 inputs and chooses to optimize for efficiency, PCB space, cost, or part count. Output is a complete schematic, BOM, efficiency plot, and performance summary. A PDF summary and a blank PCB is offered for each design to facilitate fast prototyping to verify the design. -
Download files for ADIsimPower™ Voltage Regulator Design Tool
The individual Excel-based voltage regulator design tools used in ADIsimPower™.
Data Sheets (6)
- AD7400A: Isolated Sigma-Delta Modulator Data Sheet (Rev D, 11/2012) (pdf, 322 kB)
- AD8646/AD8647/AD8648: 24 MHz Rail-to-Rail Amplifiers with Shutdown Option Data Sheet (Rev D, 04/2010) (pdf, 580 kB)
- ADP121: 150 mA, Low Quiescent Current, CMOS Linear Regulator Data Sheet (Rev G, 08/2012) (pdf, 979 kB)
- ADP3301: High Accuracy anyCAP® 100 mA Low Dropout Linear Regulator Data Sheet (Rev 0, 02/1997) (pdf, 125 kB)
- ADuM5000: 2.5 kV, Isolated DC-to-DC Converter Datasheet (Rev B, 05/2012) (pdf, 492 kB)
- ADuM5000W: 2.5 kV, Isolated DC-to-DC Converter Data Sheet (Rev 0, 09/2012) (pdf, 296 kB)
Design & Integration Files (1)
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CN0185 Design & Integration Files
(zip, 281 kB)
- Schematic
- Bill of Materials
- Gerber Files
- PADS Files
- Assembly Drawing
Device Drivers (1)
Documentation (9)
- AD7400A/AD7401A Evaluation Board (pdf, 579 kB)
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ADIsimPower™ Voltage Regulator Design Tool
This expert design tool produces custom DC-DC converter designs in about a minute. The user enters 5 inputs and chooses to optimize for efficiency, PCB space, cost, or part count. Output is a complete schematic, BOM, efficiency plot, and performance summary. A PDF summary and a blank PCB is offered for each design to facilitate fast prototyping to verify the design. - ADP121 Evaluation Board (EVAL-ADP121) (pdf, 272 kB)
- EVAL-PRAOPAMP - Universal Precision Op Amp Evaluation Board
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Power Management RedyKit
(pdf, 1124 kB)
A Complete Power Development Kit in One Convenient Package - UG-042: Evaluating 16-Lead SOIC and 16-Lead QSOP Digital Isolators User Guide (pdf, 504 kB)
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UG-052: RedyKit for the ADP121 LDO
(pdf, 118 kB)
Order the RedyKit for easy product evaluation and prototyping. The RedyKit ships with 2 preset evaluation boards plus 3 each of the standard fixed output voltage options in the product family. This allows evaluation of any voltage option with one kit. - UG-400: ezLINX™ iCoupler® Isolated Interface Development Environment (pdf, 393 kB)
- AN-649: Using the Analog Devices Active Filter Design Tool (pdf, 5301 kB)
FAQs/RAQs (24)
- Are iCoupler products Pb-free?
- Can I replace an optocoupler with an iCoupler product in an existing design?
- Do iCoupler products have VDE certification for reinforced insulation?
- How do I learn about new iCoupler products?
- How is isolation specified?
- How much isolation can iCoupler products provide?
- What are common applications that use isolation?
- What are LDOs and how are they used?
- What are optocouplers? What is optical isolation?
- What are some of the distinguishing features of the iCoupler products?
- What are the benefits of iCoupler technology?
- What are the different types of iCoupler products?
- What are transient immunity and common-mode rejection?
- What communications protocols are supported by iCoupler products?
- What is capacitive isolation?
- What is iCoupler technology?
- What is isolation rating?
- What is isolation? Why is it needed?
- What is the difference between basic and double (or reinforced) insulation levels?
- What is the relationship between working voltage and isolation rating?
- What other parameters are important when considering an isolation device?
- What regulatory standards address isolation products?
- What types of technologies have been used to provide isolation?
- With which regulatory standards do iCoupler products comply?
IBIS Models (2)
- AD7400/AD7401 IBIS Model
- ADuM5000 IBS Models (A Grade)
Overview (4)
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2008 Medical Solution Profile
(pdf, 126 kB)
High Performance ICs for Medical Imaging, Patient Monitoring, and Instrumentation - iCoupler Digital Isolators Qualified for Automotive Applications
- isoPower® - Isolated dc-to-dc Power in the smallest Package
- Using the AD7400A Isolated ΣΔ Modulator as an Isolated Amplifier (pdf, 150 kB)
Product Selection Guide (2)
Solutions Bulletins (1)
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Industrial ICs
Industrial ICs Solutions Bulletin, Volume 10, Issue 8
SPICE Models (1)
- AD8646 SPICE Macro Model
Tutorials (4)
- MT-022: ADC Architectures III: Sigma-Delta ADC Basics (pdf, 289 kB)
- MT-023: ADC Architectures IV: Sigma-Delta ADC Advanced Concepts and Applications (pdf, 936 kB)
- MT-031: Grounding Data Converters and Solving the Mystery of (pdf, 144 kB)
- MT-101: Decoupling Techniques (pdf, 954 kB)
User Guides (3)
- UG-042: Evaluating 16-Lead SOIC and 16-Lead QSOP Digital Isolators User Guide (pdf, 504 kB)
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UG-052: RedyKit for the ADP121 LDO
(pdf, 118 kB)
Order the RedyKit for easy product evaluation and prototyping. The RedyKit ships with 2 preset evaluation boards plus 3 each of the standard fixed output voltage options in the product family. This allows evaluation of any voltage option with one kit. - UG-400: ezLINX™ iCoupler® Isolated Interface Development Environment (pdf, 393 kB)
Videos (1)
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EMI in isoPower® Devices
This in-depth video shows the viewer how to reduce EMI (electromagnetic interference) in isoPower® devices
Webcasts (2)
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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. -
Isolating Power in Communication Bus and Gate Drive Applications
Starting with a communications application overview of small power options through the process of selecting the right power products this webcast is a great resource for your communications applications designs.
Analog Dialogue (3)
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Digital Isolation Offers Compact, Low-Cost Solutions to Challenging Design Problems
(Analog Dialogue, Vol. 40, December 2006) -
iCoupler® Digital Isolators Protect RS-232, RS-485, and CAN Buses in Industrial, Instrumentation, and Computer Applications
(Analog Dialogue, Vol. 39, October 2005) -
Voltage Regulators for Power Management
(Analog Dialogue, Vol. 30, No. 4, 1996)
