ADUM340E1BRQZ-RL7

Overview

The ADUM340E1BRQZ-RL7 is a quad-channel digital isolator from Analog Devices, utilizing iCoupler magnetic coupling technology. It features four unidirectional data channels with a maximum data rate of 150 Mb/s at 5V operation. The device provides an insulation voltage of 3 kVrms and 5.7 kVrms, supporting supply voltages from 2.25 V to 5.5 V. Key electrical parameters include a typical propagation delay of 6.2 ns (max 10 ns), pulse width distortion of less than 3 ns, and high common-mode transient immunity. It operates within a temperature range of -40°C to +125°C and is housed in a 16-pin QSOP package.

Feature Summary

• Integrates four independent unidirectional data channels using monolithic air-core transformer technology for robust signal isolation.
• Delivers high-speed performance with a guaranteed data rate of 150 Mb/s and low dynamic power consumption per channel.
• Provides enhanced safety compliance with UL certification up to 5700 VRMS and supports flexible 2.25V to 5.5V logic level translation.
• Features strict channel matching with minimal pulse width distortion to ensure precise timing in multi-channel applications.

Applications

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

Procurement Notes

Verify the specific suffix 'QZ' against official Analog Devices documentation to confirm the exact package variant and tape-and-reel specifications. Ensure compatibility with surface-mount assembly processes for the 16-pin QSOP form factor. Cross-reference the insulation voltage ratings required by your system design against the 3 kVrms and 5.7 kVrms values specified in the datasheet to guarantee regulatory compliance.

Selection Notes

Select this component when high-speed bidirectional or unidirectional isolation is required for multiple channels within a compact footprint. The ADUM340E1BRQZ-RL7 is suitable for designs demanding low propagation delay and tight channel-to-channel skew. Consider the 125°C operating temperature range for harsh industrial environments. Evaluate the 2.25V minimum supply voltage requirement if interfacing with low-voltage logic families.

Part Context

This part belongs to the ADuM34xE family of quad digital isolators, which are designed for high-performance isolation applications. The family leverages CMOS and air-core transformer technology to provide superior noise immunity compared to traditional optical isolators. The ADuM340E variant specifically offers fault-safe options and is AEC-Q100 qualified for automotive applications, distinguishing it from lower-speed or dual-channel counterparts in the broader ADUM product line.

Replacement Considerations

Public confirmed substitute part numbers: ADUM340E1BRWZ-RL7.