ADUM1251ARZ-RL7

The ADUM1251ARZ-RL7 is suitable for hot-swap applications, provides 30 mA current sink capability, and operates at speeds up to 1000 kHz. It has a wide voltage range of 3.0 V to 5.5 V and comes in a compact SOIC package, making it compatible with a variety of systems. The IC is designed for high temperature operation, suitable for automotive applications, and has safety and regulatory approvals including DIN VDE V 0884-11:2017-01, IEC/EN/CSA 62368-1 and IEC/CSA 61010-1, ensuring compliance international standards. In addition, it provides reinforced isolation of 560 V peak VIORM, making it ideal for use in demanding electronic systems across industries.

·Isolated I²C, SMBus, or PMBus interfaces

·Multilevel I²C interfaces

·Power supplies

·Networking

·Power over Ethernet

·Hybrid electric vehicle battery management

The ADuM1250/ADuM1251¹ are hot swappable digital isolators with nonlatching, bidirectional communication channels that are compatible with I²C interfaces. This eliminates the need for splitting I ²C signals into separate transmit and receive signals for use with standalone optocouplers.

The ADuM1250 provides two bidirectional channels, supporting a complete isolated I²C interface. The ADuM1251 provides one bidirectional channel and one unidirectional channel for applications where a bidirectional clock is not required.

Both the ADuM1250 and the ADuM1251 contain hot swap circuitry to prevent glitching data when an unpowered card is inserted onto an active bus.

These isolators are based on the iCoupler® chip scale transformer technology from Analog Devices, Inc. iCoupler is a magnetic isolation technology with functional, performance, size, and power consumption advantages as compared to optocouplers. With the ADuM1250/ADuM1251, iCoupler channels can be integrated with semiconductor circuitry, which enables a complete isolated I²C interface to be implemented in a small form factor.

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