ADUM2251ARWZ-RL

ADUM2251ARWZ-RL is a versatile isolated interface IC designed for robust bidirectional I2C communication with an open-drain interface and suitable for hot-swap applications. With an exceptional 30 mA current sink capability, it handles a wide range of devices efficiently and operates quickly at 1000 kHz. Its wide power/logic level range of 3.0 V to 5.5 V ensures compatibility with different systems. The IC is available in two package versions, including a high creepage option (RI-16-2), and can operate reliably in high temperature environments up to 105°C. This makes it an excellent choice for applications that require reliable isolation and connectivity in a variety of scenarios.

·Isolated I²C, SMBus, or PMBus interfaces

·Multilevel I²C interfaces Power supplies

·Networking

·Power over Ethernet

The ADuM2250/ADuM22511 are hot swappable digital isolators with nonlatching, bidirectional communication channels that are compatible with I²C interfaces. This eliminates the need for splitting I²C signals into separate transmit and receive signals for use with standalone optocouplers.

The ADuM2250 provides two bidirectional channels, supporting a complete isolated I²C 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® chip scale transformer technology from Analog Devices, Inc. iCoupler is a magnetic isolation technology with performance, size, power consumption, and functional advantages compared to optocouplers. The ADuM2250/ADuM2251 integrate iCoupler channels with semiconductor circuitry to enable a complete, isolated I²C interface in a small form factor package.

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