ADUM1251WARZ

Overview

The ADUM1251WARZ is a dual-channel digital isolator from Analog Devices, utilizing iCoupler magnetic coupling technology. It operates within a supply voltage range of 3 V to 5.5 V and supports data rates up to 400 kb/s. The device provides an isolation voltage of 2500 Vrms with a common-mode transient immunity of 25 kV/µs. It features bidirectional channels in an 8-SOIC package, designed for hot-swappable I2C applications. Operating temperatures span from -40°C to +105°C.

Feature Summary

• iCoupler magnetic coupling technology enables galvanic isolation without external transformers.
• Bidirectional channel configuration supports hot-swappable I2C bus communication.
• High common-mode transient immunity ensures reliable signal integrity in noisy environments.

Applications

• I2C bus isolation in industrial control systems
• Hot-swappable interface circuits
• General-purpose digital isolation for sensor interfaces

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm the specific suffix matches the required package and temperature grade. Check current availability status as this part may be subject to limited supply conditions. Ensure compliance with RoHS directives and moisture sensitivity levels during storage and handling.

Selection Notes

Select this component when bidirectional I2C isolation is required with high reliability. Consider the 8-SOIC package constraints and thermal performance limits. Evaluate power consumption requirements against the specified operating currents. Ensure system voltage levels align with the 3 V to 5.5 V operational range.

Part Context

This device belongs to the ADUM1251 series of digital isolators. It shares architectural similarities with other iCoupler products but is specifically optimized for I2C applications. The WARZ suffix indicates a specific tape and reel packaging option suitable for automated assembly processes.

Replacement Considerations

ADUM1251ARZ