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ADUM2251: Hot-Swappable Dual I^2C(R) Isolators, 5 kV

ADuM 2250/ADuM 2251*是一种可热插拔的数字式隔离器,带有非锁存的双向通信通道,并可以与I^2C接口相兼容。这就避免了将I^2C信号分离为单独的发射和接收信号、分别通过分立的光耦隔离器进行耦合的必要。

ADuM2250提供了2条双向通道,支持完全隔离的I^2C接口。ADuM2251提供了1条双向的通道和1条单向通道,以方便那些无需双向时钟的应用。

ADuM2250/ADuM2251包含了热插拔电路,可以防止未上电的板卡插入到通电的总线插口上时数据信号出现尖峰。

这些隔离器都是基于Analog Devices,Inc.的iCoupler(R)片上变压器技术。iCoupler属于磁耦合隔离技术,与光耦隔离技术相比,其在功能、性能、尺寸和功耗方面都具有优势。ADuM2250/ADuM2251将iCoupler通道与半导体电路集成到一起,从而实现了一个完整的、小尺寸的、隔离化I^2C接口。

The ADuM2250/ADuM2251* are hot swappable digital isolators with nonlatching bidirectional communication channels and are compatible with I^2C interfaces. This eliminates the need for splitting I^2C signals into separate transmit and receive signals for use with stand-alone optocouplers.

The ADuM2250 provides two bidirectional channels supporting a complete isolated I^2C interface. The ADuM2251 provides one bidirectional channel and one unidirectional channel for those applications where a bidirectional clock is not required.

The ADuM2250/ADuM2251 contain hot swap circuitry to prevent data glitches when an unpowered card is inserted onto an active bus.

These isolators are based on iCoupler(R) chip-scale transformer technology from Analog Devices, Inc. iCoupler is a magnetic isolation technology with functional, performance, size, and power consumption advantages compared to optocouplers. The ADuM2250/ADuM2251 integrate iCoupler channels with semiconductor circuitry to enable a complete, isolated I^2C interface provided in a small form-factor.

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ADUM2251 特点
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ADUM2251 芯片订购指南
产品型号 产品状态 封装 引脚 温度范围
ADUM2251ARWZ 量产 16 ld SOIC - Wide 16 工业
ADUM2251ARWZ-RL 量产 16 ld SOIC - Wide 16 工业
ADUM2251 应用技术支持与电子电路设计开发资源下载
  1. ADUM2251 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