ADUM1250WARZ-RL7

Overview

The ADUM1250WARZ-RL7 is a dual-channel digital isolator from Analog Devices, utilizing iCoupler magnetic coupling technology. It features two bidirectional communication channels designed for I2C interface compatibility without requiring signal splitting. The device supports hot-swappable operations and includes integrated circuitry to prevent data faults during insertion into active buses. It operates within a supply voltage range of 3 V to 5.5 V and provides an insulation voltage rating of 2500 Vrms. The component is housed in an 8-pin SOIC package and functions reliably across an industrial temperature range.

Feature Summary

• Dual bidirectional channels enable complete isolation of I2C interfaces without separate transmit/receive signal paths.
• Integrated hot-swap protection prevents data corruption when inserting unpowered cards into live buses.
• iCoupler magnetic coupling technology eliminates the need for external transformer or optocoupler components.

Applications

• Isolated I2C, SMBus, or PMBus interfaces
• Multi-master I2C bus systems
• Hybrid electric vehicle battery management systems

Procurement Notes

Verify the specific suffix 'W' against official Analog Devices documentation to confirm it denotes wide operating temperature or automotive qualification (AEC-Q100), as standard ARZ variants differ. Confirm the reel packaging designation matches production requirements. Ensure the part number corresponds to the correct pinout and electrical specifications before integration.

Selection Notes

Select this component when designing isolated I2C interfaces requiring bidirectional data transfer and hot-swap capability. It is suitable for applications needing galvanic isolation between microcontrollers and sensors or power stages. Consider the 2500 Vrms isolation rating and low power consumption relative to optical alternatives. Verify that the SOIC-8 package fits the PCB layout constraints.

Part Context

This part belongs to the ADUM1250 series of digital isolators. The series is characterized by high-speed magnetic coupling and low power consumption. Variants typically differ by package type, temperature range, and qualification standards. The ADUM1250 family is widely used in industrial automation and automotive electronics for robust signal isolation.

Replacement Considerations

Check Analog Devices datasheets for direct substitutes such as ADUM1250ARZ or ADUM1250WSRZ depending on required temperature range and qualification. Verify pin-to-pin compatibility and electrical parameter equivalence before substitution.