ADUM341E1BRQZ

Overview

The ADUM341E1BRQZ is a quad-channel digital isolator from Analog Devices, utilizing iCoupler magnetic coupling technology. It features a 3:1 channel configuration with three forward and one reverse channel. The device supports data rates up to 150 Mb/s and operates on supply voltages between 2.25 V and 5.5 V. Key electrical parameters include a typical propagation delay of 6.2 ns, maximum pulse width distortion of 0.3 ns, and insulation ratings of 3 kVrms and 5.7 kVrms. It functions within an operating temperature range of -40°C to +125°C.

Feature Summary

• Integrates high-speed CMOS with monolithic air-core transformer technology for robust signal isolation
• Provides independent data channels with flexible 3:1 unidirectional configuration options
• Ensures strict channel matching and low dynamic power consumption across varying data rates

Applications

• Isolation for serial peripheral interface (SPI) communication lines
• Signal isolation in RS-485 and Controller Area Network (CAN) systems
• PWM controller signal isolation in industrial automation
• General-purpose multi-channel isolation in data acquisition systems

Procurement Notes

Verify the specific suffix QZ against official documentation to confirm package type and tape/reel specifications. Ensure compatibility with required insulation voltage ratings and thermal management strategies for the target application environment. Cross-reference regulatory approvals such as UL or VDE if safety certification is mandatory for the end product design.

Selection Notes

Select this component when a 3:1 unidirectional isolation topology is required for high-speed digital signals. Consider the 5.7 kVrms insulation rating and wide operating temperature range for demanding industrial environments. Evaluate the low propagation delay and tight channel matching requirements for precise timing applications compared to other channel configurations in the series.

Part Context

This part belongs to the ADuM34xE family of quad-channel digital isolators. The series offers various channel configurations, including 4:0, 3:1, and 2:2 layouts, all sharing common core technologies and performance characteristics. These devices are designed to replace bulky optical isolators while providing superior reliability and lower power consumption in compact surface-mount packages.

Replacement Considerations

Official substitutes within the same family include ADUM341E0BRQZ for different fault-safe output states. Other variants like ADUM340E or ADUM342E provide alternative channel configurations but may not match the specific 3:1 requirement.