ADUM340E1WBRQZ-RL7

Overview

The ADUM340E1WBRQZ-RL7 is a quad-channel digital isolator from Analog Devices, utilizing iCoupler technology with magnetic coupling. It features a 16-pin wide SOIC (QSOP) package and supports unidirectional data transmission at rates up to 150 Mbps. The device operates on supply voltages between 2.25 V and 5.5 V on both sides. It provides an insulation voltage of 5.7 kVRMS and meets AEC-Q100 automotive qualification standards. The E1 suffix indicates a fault-safe high output configuration.

Feature Summary

• Integrates four independent digital channels using monolithic air-core transformer technology for robust signal isolation.
• Provides enhanced safety approvals including UL 1577 certification at 5700 VRMS and compliance with IEC 62368-1 standards.
• Features high common-mode transient immunity to effectively suppress radiated and conducted noise in electrically noisy environments.

Applications

• Isolation for Serial Peripheral Interface (SPI) communication links
• Signal isolation for RS-485 and Controller Area Network (CAN/CAN FD) buses
• Isolation of PWM controller signals in industrial power systems

Procurement Notes

Verify the specific suffix 'W' denotes the wide-body 16-SOIC package variant when sourcing. Confirm that the 'E1' designation corresponds to the required fault-safe high logic state for your interface design. Ensure compatibility with the 2.25V to 5.5V dual-supply requirement. Check current availability status as distribution may vary by region.

Selection Notes

Select this component when four isolated bidirectional or unidirectional channels are required in a single package. The wide-body QSOP-16 footprint offers improved creepage and clearance distances compared to standard SOIC packages. Choose the E1 variant specifically if a default high output state is necessary during power-up or fault conditions.

Part Context

This part belongs to the ADuM34xE family of quad digital isolators. It shares architectural similarities with the ADUM341E and ADUM342E models but differs in channel directionality and configuration options. The family is designed for applications requiring high-speed data transfer across galvanic barriers with minimal propagation delay.

Replacement Considerations

Public confirmed substitute part numbers: ADUM340E1BRQZ-RL7 (narrow body), ADUM340E1BRWZ-RL (non-automotive grade).