ADUM1253AWA+T

Overview

The ADUM1253AWA+T is a two-channel digital isolator designed for I2C communication, featuring one unidirectional and one bidirectional channel. It operates on a supply voltage range of 1.7V to 5.5V within an industrial temperature range of -40°C to +125°C. The device utilizes capacitive isolation technology to provide galvanic isolation with a rated insulation voltage of 5000 Vrms. It is housed in an 8-pin SOIC package (0.154 inch width) suitable for surface mount applications.

Feature Summary

• Provides galvanic isolation for I2C bus signals using capacitive coupling technology
• Supports mixed channel configurations with one unidirectional and one bidirectional data path
• Operates across a wide supply voltage range from 1.7V to 5.5V
• Rated for high insulation voltage of 5000 Vrms

Applications

• I2C bus isolation in industrial control systems
• Isolation between microcontrollers and peripheral devices
• Signal isolation in measurement and sensing equipment

Procurement Notes

Verify the specific suffix 'T' indicates tape and reel packaging when ordering. Confirm the '+T' designation aligns with RoHS compliance requirements for your assembly process. Check current availability status as distribution may vary by region. Ensure the SOIC-8 footprint matches your PCB design constraints before finalizing procurement.

Selection Notes

Select this component when designing I2C interfaces requiring robust galvanic isolation. It is suitable for systems needing mixed directional signal paths. Consider the 5000 Vrms rating for safety-critical applications. Verify that the operating temperature range meets environmental specifications. Ensure supply voltage compatibility with the target logic levels.

Part Context

This part belongs to the ADuM125x series of ultra-low-power I2C isolators from Analog Devices. The series offers various channel configurations to support different I2C topology requirements. These devices are engineered to replace traditional optocouplers in space-constrained designs while maintaining high reliability and low power consumption standards.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.