ADUM341E0BRQZ

Overview

The ADUM341E0BRQZ 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 unidirectional path. The device supports data rates up to 150 Mb/s at 5V operation. It operates on supply voltages between 2.25V and 5.5V. Key electrical parameters include a typical propagation delay of 6.2 ns and a maximum pulse width distortion of 0.3 ns. Insulation ratings are 3 kVrms basic and 5.7 kVrms reinforced. The component is housed in a 16-lead QSOP package.

Feature Summary

• Integrates four independent isolation channels using CMOS and monolithic transformer technology for high-speed signal transmission.
• Provides enhanced safety certifications including UL 1577 recognition and VDE compliance for reinforced insulation applications.
• Features fault-safe logic options ensuring defined output states during power loss or input failure conditions.
• Delivers high common-mode transient immunity to maintain signal integrity in electrically noisy industrial environments.

Applications

• Isolation for SPI interfaces in multi-channel data acquisition systems
• Signal isolation for RS-485 communication buses
• Controller Area Network (CAN) interface protection
• Industrial fieldbus isolation in automation controllers

Procurement Notes

Verify the specific suffix QZ against the official datasheet ordering guide to confirm the reel packaging variant. Ensure the E0 designation matches the required fault-safe low logic state for your circuit design. Cross-reference the QSOP-16 package dimensions with your PCB footprint library. Confirm that the 5.7 kVrms insulation rating meets the safety requirements of your target application environment.

Selection Notes

Select this component when a 3:1 directional isolation ratio is required within a quad-channel architecture. The E0 variant provides a default high-to-low fault-safe state, suitable for systems requiring safe defaults upon power interruption. Consider the 150 Mbps speed limit and 6.2 ns delay for timing-critical synchronous protocols. Evaluate the 2.25V minimum supply voltage compatibility if interfacing with lower voltage logic domains.

Part Context

This part belongs to the ADuM341E series of quad-channel digital isolators. It shares the core iCoupler technology family with variants offering different channel configurations and insulation levels. The series is designed for robust performance in harsh electromagnetic environments while maintaining small form factors through chip-level integration.

Replacement Considerations

Public confirmed substitutes include ADUM341E0BRQZ-RL7 and ADUM341E0BRWZ. Verify package compatibility between QSOP and SOIC variants before substitution.

FAQ

What is the difference between the E0 and E1 suffixes?

The E0 suffix indicates a fault-safe low output configuration, while E1 indicates a fault-safe high output configuration during power-down or input failure events.

Does this device support bidirectional data transfer?

No, the ADUM341E0BRQZ is strictly unidirectional with a 3:1 channel split, meaning data flows only from the input side to the output side.