ADUM342E0BRWZ

Overview

The ADUM342E0BRWZ is a quad-channel digital isolator from Analog Devices, utilizing iCoupler technology with integrated CMOS and monolithic transformer coupling. It provides bidirectional data transmission across four independent channels within a 16-lead SOIC package. The device supports a maximum data rate of 150 Mbps at 5V operation. It operates on supply voltages ranging from 2.25V to 5.5V on either side of the isolation barrier. Key electrical parameters include an insulation voltage of 10000 V peak and a typical propagation delay of 6.2 ns. The component features high common-mode transient immunity of 180 kV/µs and is designed for robust performance in noisy industrial environments.

Feature Summary

• Integrates four independent bidirectional data channels using proprietary iCoupler magnetic coupling technology
• Provides enhanced surge isolation voltage capability up to 10000 V peak for robust noise immunity
• Features fault-safe logic options ensuring defined output states during power loss or input failure
• Delivers low dynamic power consumption per channel while maintaining high-speed signal integrity

Applications

• Isolation for Serial Peripheral Interface (SPI) communication links
• Signal isolation for RS-485 and Controller Area Network (CAN FD) buses
• PWM controller signal isolation in motor drive systems
• General-purpose multi-channel isolation for industrial fieldbus networks

Procurement Notes

Verify current availability status as distribution channels may indicate limited stock or restricted supply conditions. Confirm that the specific suffix matches the required fault-safe configuration and packaging format. Ensure compliance with regional RoHS directives and check for any recent process change notifications affecting assembly sites. Validate that the operating temperature range meets the specific environmental requirements of the target application before finalizing procurement.

Selection Notes

Select this component when four isolated bidirectional channels are required within a single compact package. The E0 suffix indicates a fault-safe low output configuration; verify if this matches the system's default state requirements compared to the E1 variant. Consider the 150 Mbps data rate limit against the specific bus speed requirements of the application. Evaluate the 5.7kVRMS reinforced isolation rating against the safety standards mandated by the end equipment design.

Part Context

This part belongs to the ADuM340E/ADuM341E/ADuM342E family of four-channel digital isolators. These devices share the same core iCoupler architecture but differ in channel directionality and fault-safe configurations. The ADUM342 series specifically offers fully bidirectional channels, distinguishing it from unidirectional variants like the ADUM340. All members of this family utilize the same 16-lead SOIC footprint, facilitating pin-compatible design upgrades.

Replacement Considerations

Direct substitutes within the same family include ADUM342E1BRWZ, which shares identical electrical characteristics but utilizes a fault-safe high output configuration instead of low. Designers must verify that the specific fault-state requirement aligns with the chosen replacement variant to ensure proper system behavior during isolation barrier failures.