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ADuM1400/ADuM1401/ADuM1402: Quad-Channel Digital Isolators Data Sheet (Rev. L)8/3/2015PDF788 kB
Alternative Parts
Overview
Features and Benefits
- Qualified for automotive applications
- Low power operation
- Bidirectional communication
- 3 V/5 V level translation
- High temperature operation: 125°C
- High data rate: dc to 90 Mbps (NRZ)
- Precise timing characteristics
- High common-mode transient immunity: >25 kV/μs
- See data sheet for additional features
Product Details
The ADuM1401 is a quad-channel digital isolator with 3/1 channel directionality based on Analog Devices, Inc., iCoupler® technology. 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 opto-couplers. 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 of the power of optocouplers at comparable signal data rates.
The ADuM1400 / ADuM1401 / ADuM1402 isolators provide four independent isolation channels in a variety of channel configurations and data rates (see the Ordering Guide in the data sheet). 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. In addition, the ADuM1400 / ADuM1401 / ADuM1402 provide low pulse width distortion (<2 ns for CRW grade) and tight channel-to-channel matching (<2 ns for CRW grade). Unlike other optocoupler alternatives, the ADuM1400 / ADuM1401 / ADuM1402 isolators have a patented refresh feature that ensures dc correctness in the absence of input logic transitions and when power is not applied to one of the supplies.
APPLICATIONS
- General-purpose multichannel isolation
- SPI interface/data converter isolation
- RS-232/RS-422/RS-485 transceivers
- Industrial field bus isolation
- Automotive systems
Product Categories
Markets and Technologies
Product Lifecycle
Production
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.
Evaluation Kits (1)
Documentation & Resources
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AN-1519: 16-Bit, Fully Isolated Output Module Using the AD5422 Single-Chip Voltage and Current Output DAC and the ADuM1401 Digital Isolator (Rev. C)2/7/2018PDF162 K
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AN-1517: 16-Bit, Fully Isolated, Voltage Output Module Using the AD5662 DAC, ADuM1401 Digital Isolator, and External Amplifiers (Rev. B)12/21/2017PDF158 K
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AN-1518: 16-Bit, Fully Isolated, 4 mA to 20 mA, Output Module Using the AD5662 DAC, ADuM1401 Digital Isolator, and External Amplifiers (Rev. C)12/19/2017PDF111 K
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AN-0971: Recommendations for Control of Radiated Emissions with isoPower Devices (Rev. C)2/14/2015PDF406 kB
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AN-913: Isolating I2C Interfaces (Rev. 0)6/20/2007PDF280 kB
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AN-727: iCoupler® Isolation in RS-485 Applications (Rev. 0)11/1/2006PDF282 kB
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AN-740: iCoupler® Isolation in RS-232 Applications (Rev. A)11/1/2006PDF218 K
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AN-770: iCoupler® Isolation in CAN Bus Applications (Rev. 0)11/1/2006PDF234 kB
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AN-793: ESD/Latch-Up Considerations with iCoupler® Isolation Products (Rev. A)11/1/2006PDF246 kB
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AN-825: Power Supply Considerations in iCoupler® Isolation Products (Rev. 0)11/1/2006PDF181 kB
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UG-935: Using the EVAL-3CH4CHSOICEBZ iCoupler Data Isolator Evaluation Board (Rev. A)5/11/2016PDF307 K
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UG-181: PLC Demo System, Industrial Process Control Demo System (Rev. A)9/21/2010PDF495 K
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UG-042: Evaluating 16-Lead SOIC and 16-Lead QSOP Digital Isolators3/5/2010PDF504 kB
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FAQs7/26/2017
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Digital Isolation and Interface Technology Selection Guide2/7/2020PDF4 M
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Automotive Grade Digital Isolators - ADuM120xW/ADuM130xW/ADuM140xW (2008)2/22/2011PDF1153 kB
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Enhanced Protection with the Latest iCoupler® Digital Isolation2/7/2020PDF2 M
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Ultralow Power Opening Applications to High Speed Isolation4/1/2014
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Digital Isolators: Solving Design Challenges in Automotive xEV Applications7/1/2013
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Inside iCoupler® Technology:ADuM347x PWM Controller and Transformer Driver with Quad-Channel Isolators Design Summary12/10/2010PDF291 kB
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NAppkin Note: Lowering the Power of the ADuM524x12/10/2010PDF223 kB
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Part 2: Simplifying Design of Industrial Process-Control Systems with PLC Evaluation Boards9/10/2009
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Part 1: Simplifying Design of Industrial Process-Control Systems with PLC Evaluation Boards9/10/2009
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Digital Isolator Simplifies USB Isolation in Medical and Industrial Applications6/1/2009 Analog Dialogue
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PLC Evaluation Board Simplifies Design of Industrial Process-Control systems4/1/2009 Analog Dialogue
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Medical Devices Demand Stringent Isolation Techniques9/28/2006
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Precision Signal-Processing and Data-Conversion ICs for PLCs Now Have More Performance at Less Power, Size, and Cost8/1/2006 Analog Dialogue
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Isolation in Medical Applications7/1/2005PDF
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High Speed Digital Isolators Using Microscale On-Chip Transformers9/1/2003
Tools & Simulations
IBIS Models
IBS
ADuM1401/ADuM2401 5V IBIS Model
26.92 K
Reference Designs (1)
Design Resources
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.
PCN-PDN Information
Support & Discussions
ADUM1401 Discussions
Sample & Buy
Ordering FAQs
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Evaluation Boards
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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.