ADuM2201ARWZ: Dual-Channel Digital Isolators, 5 kV
ADuM220x*是基于ADI公司iCoupler®技术的双通道数字隔离器。通过将高速CMOS工艺和单片空芯变压器技术结合在一起,较之传统光耦合器件等其他元件来说,这些隔离器件能提供更加优异和杰出的工作特性。
由于在iCoupler器件中无需使用LED和光电二极管,所以避免了光耦合器设计中的一些常见困难,例如电流传输率的不确定性、非线性传递函数以及温度与使用寿命的影响等问题,而当使用简单和具有稳定工作特性的iCoupler数字接口电路时,这些问题将迎刃而解。采用iCoupler产品,无需外部驱动器和其他分立器件。而且,与光耦合器相比,在相同的信号数据速率下,iCoupler器件的功耗仅为其十分之一至六分之一。
ADuM220x隔离器提供两路独立的隔离通道,支持多种配置和数据速率（参见订购指南）。ADuM220x模块两侧的电源电压范围均为2.7V～5.5V,可与低电压系统兼容,同时还能实现隔离势垒之间的电压转换功能。另外,ADuM220x还提供了低脉宽失真（BRWZ级<3 ns）和通道与通道之间的严格匹配（BRWZ级<3 ns）。与其他光耦合器不同,ADuM220x耦合器还具有已注册专利的刷新特性,能确保在没有输入逻辑电平转换和电源开启/关闭条件下的直流电平的正确性。
The ADuM220x1 are 2-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 that are 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. Typical optocoupler concerns regarding uncertain current transfer ratios, nonlinear transfer functions, and temper-ature 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 elimi-nated with these iCoupler products. Furthermore, iCoupler devices run at one-tenth to one-sixth the power of optocouplers at comparable signal data rates.
The ADuM220x isolators provide two independent isolation channels in a variety of channel configurations and data rates (see the Ordering Guide). The ADuM220x models operate with the supply voltage of either side ranging from 3.0 V to 5.5 V, providing compatibility with lower voltage systems as well as enabling voltage translation functionality across the isolation barrier. The ADuM220x isolators have a patented refresh feature that ensures dc correctness in the absence of input logic transi-tions and during power-up/power-down conditions.
Similar to the ADuM320x isolators, the ADuM220x isolators contain various circuit and layout enhancements 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 ADuM320x or ADuM220x products is strongly determined by the design and layout of the user’s board or module. For more information, see the AN-793 Application Note, ESD/Latch-Up Considerations with iCoupler Isolation Products.
产品应用领域 Applications
- 通用,高电压,多通道隔离
- 医疗设备
- 电源
- RS-232/RS-422/RS-485收发器隔离
- General-purpose, high voltage, multichannel isolation
- Medical equipment
- Power supplies
- RS-232/RS-422/RS-485 transceiver isolation
ADuM2201ARWZ 特点
- High isolation voltage: 5000 V rms
- Enhanced system-level ESD performance per IEC 61000-4-x
- Low power operation
5 V operation
3 V operation - Bidirectional communication
- 3 V/5 V level translation
- High temperature operation: 105°C
- High data rate: dc to 10 Mbps (NRZ)
- See Data Sheet for Additional Information
ADuM2201ARWZ 功能框图
| 产品型号 | 产品状态 | 封装 | 引脚 | 温度范围 |
|---|---|---|---|---|
| ADuM2201ARWZ | 量产 | 16 | 工业 | |
| ADuM2201ARWZ-RL | 量产 | 16 | 工业 | |
| ADuM2201BRWZ | 量产 | 16 | 工业 | |
| ADuM2201BRWZ-RL | 量产 | 16 | 工业 |
ADuM2201ARWZ 应用技术支持与电子电路设计开发资源下载
- ADuM2201 数据手册DataSheet下载 . pdf
- Analog Devices, Inc.ADI 美国模拟器件公司产品订购手册 .pdf
- ADC模数转换器选型指南 . pdf
