ADUM340E1BRWZ

Overview

The ADUM340E1BRWZ is a quad-channel digital isolator from the ADuM34xE series, utilizing iCoupler technology with integrated CMOS and monolithic transformer coupling. It provides bidirectional data transmission across four independent channels within a 16-pin SOIC package. The device supports a maximum data rate of 150 Mbps at 5V operation and features a propagation delay of 10 ns maximum. It operates on supply voltages ranging from 2.25 V to 5.5 V and offers high common-mode transient immunity of 180 kV/µs typical. The component is rated for an insulation voltage of 5700 VRMS and functions reliably in temperatures from -40°C to +125°C.

Feature Summary

• Integrates four independent bidirectional data channels using magnetic coupling technology
• Provides high common-mode transient immunity for robust noise rejection
• Supports flexible voltage level translation between 2.25 V and 5.5 V domains
• Includes fault-safe output options for defined states during power loss

Applications

• Isolation for Serial Peripheral Interface (SPI) communication
• Data converter isolation in industrial systems
• RS-485 and Controller Area Network (CAN) bus isolation
• PWM controller signal isolation
• General-purpose multi-channel isolation requirements

Procurement Notes

Verify the specific suffix 'E1' against official Analog Devices documentation to confirm it denotes the correct channel configuration and pinout variant. Ensure the selected package matches the required PCB footprint. Confirm that the 5700 VRMS insulation rating aligns with your system's safety regulatory requirements before finalizing procurement.

Selection Notes

Select this component when high-speed data rates up to 150 Mbps are required alongside strong noise immunity. It is suitable for applications needing precise channel matching and low propagation delay. Consider the bidirectional nature of all four channels and the wide operating temperature range for harsh environments. Verify compatibility with the target logic voltage levels on both sides of the isolation barrier.

Part Context

This part belongs to the ADuM34xE family of quad-channel digital isolators. These devices are designed to replace traditional optocouplers and relay drivers in modern designs. The series emphasizes compact size, low power consumption, and superior performance characteristics compared to legacy isolation technologies.

Replacement Considerations

Cross-reference with other ADUM340 variants such as ADUM3401 or ADUM3402 if different channel configurations or speed grades are needed. Check datasheets for exact pinout compatibility and electrical parameter differences before substituting.