ADUM1402 Quad-Channel Digital Isolator (2/2 Channel Directionality)

Applications General-purpose multichannel isolation SPI interface/data converter isolation RS-232/RS-422/RS-485 transceivers Industrial field bus isolation Automotive systems

The ADuM1402 is a quad-channel digital isolator with 2/2 channel directionality based on Analog Devices, Inc.,iCoupler® technology. Combining high speed CMOS and monolithic air core transformer technology, this isolation component provides 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 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
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
Interface & Isolation
Automotive
  • Powertrain Body and Chassis
IBIS Models
Reference Designs
Data Sheets
Documentnote
ADuM1400/ADuM1401/ADuM1402: Quad-Channel Digital Isolators Data Sheet (Rev. K)PDF 788 kB
Application Notes
Documentnote
AN-0971: Recommendations for Control of Radiated Emissions with isoPower Devices (Rev. C)PDF 406 kB
AN-913: Isolating I2C Interfaces (Rev. 0)PDF 280 kB
AN-727: iCoupler® Isolation in RS-485 Applications (Rev. 0)PDF 282 kB
AN-740: iCoupler® Isolation in RS-232 Applications (Rev. 0)PDF 716 kB
AN-770: iCoupler® Isolation in CAN Bus Applications (Rev. 0)PDF 234 kB
AN-793: ESD/Latch-Up Considerations with iCoupler® Isolation Products (Rev. A)PDF 246 kB
AN-825: Power Supply Considerations in iCoupler® Isolation Products (Rev. 0)PDF 181 kB
User Guides
Documentnote
UG-935: Using the EVAL-3CH4CHSOICEBZ iCoupler Data Isolator Evaluation Board (Rev. 0)PDF 334.86 K
UG-042: Evaluating 16-Lead SOIC and 16-Lead QSOP Digital IsolatorsPDF 504 kB
Frequently Asked Questions
Documentnote
Order Information
Part NumberPackagePacking QtyTemp RangePrice 100-499Price 1000+RoHS
ADUM1402ARWZ Production16 ld SOIC - WideOTH 47-40 to 105C1.961.7Y
ADUM1402ARWZ-RL Production16 ld SOIC - WideREEL 1000-40 to 105C01.7Y
ADUM1402BRWZ Production16 ld SOIC - WideOTH 47-40 to 105C2.542.2Y
ADUM1402BRWZ-RL Production16 ld SOIC - WideREEL 1000-40 to 105C02.2Y
ADUM1402CRWZ Production16 ld SOIC - WideOTH 47-40 to 105C2.962.45Y
ADUM1402CRWZ-RL Production16 ld SOIC - WideREEL 1000-40 to 105C02.45Y
ADUM1402WSRWZ Production16 ld SOIC - WideOTH 47-40 to 125C2.832.51Y
ADUM1402WSRWZ-RL Production16 ld SOIC - WideREEL 1000-40 to 125C02.51Y
ADUM1402WTRWZ Production16 ld SOIC - WideOTH 47-40 to 125C4.243.75Y
ADUM1402WTRWZ-RL Production16 ld SOIC - WideREEL 1000-40 to 125C03.75Y
Evaluation Boards
Part NumberDescriptionPriceRoHS
AD-FMCMOTCON2-EBZEvaluation Board999Y
EVAL-3CH4CHSOICEBZ3 and 4 Channel Unpopulated SOIC Evaluation Board49Y
EVAL-ADUMQSEBZEvaluation Board25Y
Reference Materials
ADuM1400/ADuM1401/ADuM1402: Quad-Channel Digital Isolators Data Sheet (Rev. K) adum1400
ADuM1402/ADuM2402 5V IBIS Model adum1402
ADuM1402 and ADuM2402 (All Speed Grades) adum1402
CN0194 Design & Integration Files adr391
AN-0971: isoPower器件的辐射控制建议 (Rev. C) adum1233
AN-0971: Recommendations for Control of Radiated Emissions with isoPower Devices (Rev. C) ad7400
AN-793: iCoupler®隔离产品的ESD/闩锁考虑因素 (Rev. A) adum1233
AN-770: CAN总线应用中的iCoupler®隔离 (Rev. 0) adum1233
AN-740: RS-232应用中的Coupler® 隔离 (Rev. 0) adum1233
AN-727: RS-485应用中的iCoupler®隔离 (Rev. 0) adum1233
AN-913: I²C 接口的隔离 (Rev. 0) adum1233
AN-913: Isolating I2C Interfaces (Rev. 0) ad7400
AN-727: iCoupler® Isolation in RS-485 Applications (Rev. 0) ad7400
AN-740: iCoupler® Isolation in RS-232 Applications (Rev. 0) ad7400
AN-770: iCoupler® Isolation in CAN Bus Applications (Rev. 0) ad7400
AN-793: ESD/Latch-Up Considerations with iCoupler® Isolation Products (Rev. A) ad7400
AN-825: iCoupler®隔离产品的电源考虑因素 (Rev. 0) adum1233
AN-825: Power Supply Considerations in iCoupler® Isolation Products (Rev. 0) ad7400
UG-935: Using the EVAL-3CH4CHSOICEBZ iCoupler Data Isolator Evaluation Board (Rev. 0) adum1300
UG-042: Evaluating 16-Lead SOIC and 16-Lead QSOP Digital Isolators adum1300
数字隔离器产品选型与资源指南 adum1233
Automotive Grade Digital Isolators - ADuM120xW/ADuM130xW/ADuM140xW (2008) adum3220
Emerging Energy Applications Solutions Bulletin, Volume 10, Issue 4 ad7656
CN-0194：电流隔离、双通道、16位、同步采样、菊花链连接的数据采集系统 adr391
MS-2644：超低功耗开启高速隔离应用之门 adum1400
MS-2127: 在太阳能逆变器中利用 i Coupler 数字隔离器进行设计 adum3220
Inside iCoupler® Technology:ADuM347x PWM Controller and Transformer Driver with ad7400
NAppkin Note: Lowering the Power of the ADuM524x ad7400
High Speed Digital Isolators Using Microscale On-Chip Transformers adum1233
微变压器为混合动力汽车提供信号与电源隔离 adum1233
全新iCoupler系列器件有助于隔离式模拟I/O设计 adum3220
集成变压器耦合隔离，作者：Ronn Kliger (pdf, 544,768 bytes) adum3220
iCoupler® Products with isoPower™ Technology: Signal and Power Transfer... adum1233
Isolation in Medical Applications adum4160
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