ADUM1311 Triple-Channel Digital Isolators

The ADuM131x isolators provide three independent isolation channels in a variety of channel configurations and data rates up to 10 Mbps (see the Ordering Guide). 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 voltage translation functionality across the isolation barrier. All products allow the user to predetermine the default output state in the absence of input VDD1 power with a simple control pin. Unlike other optocoupler alternatives, the ADuM131x isolators have a patented refresh feature that ensures dc correctness in the absence of input logic transitions and during power-up/ power-down conditions. Applications General-purpose multichannel isolation SPI interface/data converter isolation RS-232/RS-422/RS-485 transceiver Industrial field bus isolation

The ADuM131x are 3-channel digital isolators 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 optocouplers. The typical optocoupler concerns regarding uncertain current transfer ratios, maximum operating 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 iCoupler also offers higher channel densities and more options for channel directionality.

The ADuM131x isolators provide three independent isolation channels in a variety of channel configurations and data rates up to 10 Mbps (see the Ordering Guide). 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 voltage translation functionality across the isolation barrier. All products allow the user to predetermine the default output state in the absence of input VDD1 power with a simple control pin. Unlike other optocoupler alternatives, the ADuM131x isolators have a patented refresh feature that ensures dc correctness in the absence of input logic transitions and during power-up/ power-down conditions.

Applications
  • General-purpose multichannel isolation
  • SPI interface/data converter isolation
  • RS-232/RS-422/RS-485 transceiver
  • Industrial field bus isolation
Features and Benefits
  • Bidirectional communication
  • 3 V/5 V level translation
  • Schmitt trigger inputs
  • High temperature operation: 105°C
  • 5 V operation
    1.7 mA per channel maximum @
    0 Mbps to 2 Mbps
    4.0 mA per channel maximum @
    2 Mbps to 10 Mbps
  • 3 V operation
    1.0 mA per channel maximum @
    0 Mbps to 2 Mbps
    2.1 mA per channel maximum @
    2 Mbps to 10 Mbps
  • Up to 10 Mbps data rate (NRZ)
  • Programmable default output state
  • High common-mode transient immunity: >25 kV/µs
  • 16-lead, RoHS-compliant, SOIC wide body package
  • 8.1 mm external creepage
  • UL recognition: 2500 V rms for 1 minute per UL 1577
  • CSA Component Acceptance Notice #5A
  • VDE certificate of conformity
    DIN V VDE V 0884-10
    (VDE V 0884-10): 2006-12
    VIORM = 560 V peak working voltage
Interface & Isolation
Aerospace and Defense
  • Solutions
Reference Designs
Data Sheets
Documentnote
ADuM1310/ADuM1311: Triple-Channel Digital Isolators Data Sheet (Rev. K)PDF 1429 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
ADUM1311ARWZ Production16 ld SOIC - WideOTH 47-40 to 105C1.551.28Y
ADUM1311ARWZ-RL Production16 ld SOIC - WideREEL 1000-40 to 105C01.28Y
ADUM1311BRWZ Production16 ld SOIC - WideOTH 47-40 to 105C2.111.74Y
ADUM1311BRWZ-RL Production16 ld SOIC - WideREEL 1000-40 to 105C01.74Y
Evaluation Boards
Part NumberDescriptionPriceRoHS
EVAL-3CH4CHSOICEBZ3 and 4 Channel Unpopulated SOIC Evaluation Board49Y
EVAL-ADUMQSEBZEvaluation Board25Y
Reference Materials
ADuM1310/ADuM1311: Triple-Channel Digital Isolators Data Sheet (Rev. K) adum1310
CN0325 Design & Integration Files adg442
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
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
iCoupler® Products with isoPower™ Technology: Signal and Power Transfer... adum1233