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ADuM3201BRZ:  Dual-Channel, Digital Isolator, Enhanced System-Level ESD Reliability

The ADuM320x* are dual-channel, digital isolators based on the Analog Devices, Inc. iCoupler® technology. Combining high speed CMOS and monolithic 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, 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 the power of optocouplers at comparable signal data rates.

The ADuM320x isolators provide two independent isolation channels in a variety of channel configurations and data rates (see the Data Sheet 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. The ADuM320x isolators have a patented refresh feature that ensures dc correctness in the absence of input logic transitions and during power-up/power-down conditions.

In comparison to the ADuM120x isolators, the ADuM320x isolators contain various circuit and layout changes to provide increased capability relative to system-level IEC 61000-4-x testing (ESD, burst, and surge). The precise capability in these tests for either the ADuM120x or ADuM320x products is strongly determined by the design and layout of the user’s board or module. For more information, see Application Note AN-793, ESD/Latch-Up Considerations with iCoupler Isolation Products.

产品应用领域 Applications

• Size-critical multichannel isolation
• SPI interface/data converter isolation
• RS-232/RS-422/RS-485 transceiver isolation
• Digital field bus isolation

ADuM3201BRZ 特点

• Enhanced system-level ESD performance per IEC 61000-4-x
• Narrow body, RoHS-compliant, 8-lead SOIC
• Bidirectional communication
• 3 V/5 V level translation

Low power operation

• 5 V operation
  1.6 mA per channel maximum @ 0 Mbps to 2 Mbps
  3.7 mA per channel maximum @ 10 Mbps
  7.5 mA per channel maximum @ 25 Mbps
• 3 V operation
  1.4 mA per channel maximum @ 0 Mbps to 2 Mbps
  2.4 mA per channel maximum @ 10 Mbps
  4.6 mA per channel maximum @ 25 Mbps
• High temperature operation: 105°C
• High data rate: dc to 25 Mbps (NRZ)
• Precise timing characteristics
  3 ns maximum pulse width distortion
  3 ns maximum channel-to-channel matching
• High common-mode transient immunity: >25 kV/μs

Safety and regulatory approvals

• 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

ADuM3201BRZ 功能框图

ADuM3201 芯片订购指南

产品型号	产品状态	封装	引脚	温度范围
ADuM3201ARZ	量产	8 ld SOIC	8	工业
ADuM3201ARZ-RL7	量产	8 ld SOIC	8	工业
ADuM3201BRZ	量产	8 ld SOIC	8	工业
ADuM3201BRZ-RL7	量产	8 ld SOIC	8	工业
ADuM3201CRZ	量产	8 ld SOIC	8	工业
ADuM3201CRZ-RL7	量产	8 ld SOIC	8	工业

ADuM3201BRZ 应用技术支持与电子电路设计开发资源下载

1. ADuM3201 数据手册DataSheet下载 . pdf
2. Analog Devices, Inc.ADI 美国模拟器件公司产品订购手册 .pdf
3. ADC模数转换器选型指南 . pdf