ADUM6420ABRNZ5

Overview

The ADUM6420ABRNZ5 is a quad-channel digital isolator from Analog Devices, featuring an integrated isoPower DC-to-DC converter. It provides 5kV isolation with low EMI characteristics and supports data rates up to 100 Mb/s. The device offers four unidirectional channels (4:0) and operates on a 5V supply. It utilizes magnetic coupling for signal transmission and includes shutdown functionality. The component is housed in a SOIC-28 package and is designed for robust performance across industrial temperature ranges.

Feature Summary

• Integrates a high-efficiency DC-to-DC converter for isolated power delivery
• Provides robust 5kVrms insulation barrier using magnetic coupling technology
• Features low electromagnetic interference (EMI) design for sensitive environments
• Includes independent shutdown control for each channel to reduce power consumption

Applications

• Industrial automation systems requiring galvanic isolation
• Medical equipment needing reliable signal and power separation
• Automotive electronics with strict noise immunity requirements
• Test and measurement instruments utilizing high-speed digital interfaces

Procurement Notes

Verify the specific suffix '5' indicates the 5V operating voltage configuration. Confirm the '-RL' suffix denotes reel packaging if applicable. Check current availability status as supply may be limited. Ensure compatibility with existing board layouts for the SOIC-28 footprint. Validate thermal management requirements given the integrated power converter.

Selection Notes

Select this component when both isolated power and four-channel data isolation are required in a single package. Compare against other ADUM64xx variants based on specific voltage needs (3V vs 5V) and channel directionality. Consider the low EMI feature for applications near RF circuits. Evaluate the shutdown pin utility for system-level power management strategies.

Part Context

This part belongs to the ADUM64xx family of quad-channel isolators with integrated power supplies. It complements models like ADUM6421A and ADUM6423A by offering a fixed 5V output option. The series is designed to simplify PCB layout by combining isolation barriers with power conversion capabilities.

Replacement Considerations

Direct substitutes include ADUM6420ABRNZ3 for 3V operation or ADUM6422ABRNZ5 for bidirectional channels. Verify pinout compatibility before swapping. Ensure the replacement maintains the same isolation voltage rating and data rate specifications.