ADUM1201 Dual-Channel Digital Isolator (1/1 Channel Directionality)

The ADuM1201 is a dual-channel, digital isolator with 1/1 channel directionality based on the Analog Devices, Inc., iCoupler® technology. Combining high speed CMOS and monolithic transformer technologies, these isolation components provide outstanding performance characteristics superior to alternatives, such as optocouplers.

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 char-acteristics. The need for external drivers and other discrete components is eliminated with these iCoupler products. Further-more, iCoupler devices consume one-tenth to one-sixth the power of optocouplers at comparable signal data rates.

The ADuM120x product family of isolators provides two independent isolation channels in a variety of channel configurations and data rates (see the Ordering Guide). Both parts 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 ADuM120x provide low pulse width distortion (<3 ns for CR grade) and tight channel-to-channel matching (<3 ns for CR grade). Unlike other optocoupler alternatives, the ADuM120x isolators have a patented refresh feature that ensures dc correctness in the absence of input logic transitions and during power-up/power-down conditions.

ADuM1200W and ADuM1201W are automotive grade versions qualified for 125°C operation per AEC-Q100. See the Automotive Products section for more details.

Applications
  • Size-critical multichannel isolation
  • SPI interface/data converter isolation
  • RS-232/RS-422/RS-485 transceiver isolation
  • Digital field bus isolation
  • Hybrid electric vehicles, battery monitor, and motor drive
Features and Benefits
  • Narrow body, RoHS-compliant, SOIC 8-lead package
  • Low power operation
  • Bidirectional communication
  • 3 V/5 V level translation
  • High temperature operation:
    125°C
  • High data rate: dc to 25 Mbps (NRZ)
  • Precise timing characteristics
  • High common-mode transient immunity:
    >25 kV/μs
  • Automotive versions qualified per AEC-Q100
  • See data sheet for additional features
Interface & Isolation
Automotive
  • Powertrain Body and Chassis
ADuM1201 IBIS Model (B and C Grades)
ADuM1201 IBIS Model (A Grade)
Reference Designs
Data Sheets
Documentnote
ADuM1200/ADuM1201: Dual-Channel Digital Isolators Data Sheet (Rev. K)PDF 571.64 K
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-252: Evaluation Board for the AD7280A Lithium Ion Battery Monitoring SystemPDF 1627 kB
Frequently Asked Questions
Documentnote
Order Information
Part NumberPackagePacking QtyTemp RangePrice 100-499Price 1000+RoHS
ADUM1201ARZ Production8 ld SOICOTH 98-40 to 105C1.270.98Y
ADUM1201ARZ-RL7 Production8 ld SOICREEL 1000-40 to 105C00.98Y
ADUM1201BR Production8 ld SOICOTH 98-40 to 105C2.332.06N
ADUM1201BR-RL7 Production8 ld SOICREEL 1000-40 to 105C02.06N
ADUM1201BRZ Production8 ld SOICOTH 98-40 to 105C1.351.2Y
ADUM1201BRZ-RL7 Production8 ld SOICREEL 1000-40 to 105C01.2Y
ADUM1201CR-RL7 Obsolete8 ld SOICREEL 100000N
ADUM1201CRZ Production8 ld SOICOTH 98-40 to 105C1.441.28Y
ADUM1201CRZ-RL7 Production8 ld SOICREEL 1000-40 to 105C01.28Y
ADUM1201WSRZ Production8 ld SOICOTH 98-40 to 125C1.651.46Y
ADUM1201WSRZ-RL7 Production8 ld SOICREEL 1000-40 to 125C01.46Y
ADUM1201WTRZ Production8 ld SOICOTH 98-40 to 125C2.422.14Y
ADUM1201WTRZ-RL7 Production8 ld SOICREEL 1000-40 to 125C02.14Y
ADUM1201WURZ Production8 ld SOICOTH 98-40 to 125C3.342.96Y
ADUM1201WURZ-RL7 Production8 ld SOICREEL 1000-40 to 125C02.96Y
Evaluation Boards
Part NumberDescriptionPriceRoHS
EVAL-1CH2CHSOICEBZ1 and 2 Channel Unpopulated SOIC Evaluation Board49Y
EVAL-ADUM226N0EBZADuM226N0 Populated 2 Channel ISO Evaluation Board49Y
Reference Materials
ADuM1200/ADuM1201: Dual-Channel Digital Isolators Data Sheet (Rev. K) adum1200
ADuM1201 3V adum1201
ADuM1201 5V adum1201
ADuM1201 3V adum1201
ADuM1201 5V adum1201
CN0197 设计和集成文件 adg849
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-252: Evaluation Board for the AD7280A Lithium Ion Battery Monitoring System adg3308
数字隔离器产品选型与资源指南 adum1233
Automotive Grade Digital Isolators - ADuM120xW/ADuM130xW/ADuM140xW (2008) adum3220
CN-0197: Lithium Ion Battery Stack Monitor with Both Signal and Power Isolation adg849
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
Isolation in Medical Applications adum4160
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