ADUM6420ABRNZ3

Overview

The ADUM6420ABRNZ3 is a quad-channel digital isolator from Analog Devices, utilizing isoPower technology to provide high-speed data transmission with integrated power isolation. It features four independent channels operating at a data rate of 100 Mb/s with a common-mode transient immunity of 75 kV/µs. The device supports a supply voltage range of 1.7 V to 5.5 V and operates within a temperature range of -40°C to +125°C. Packaged in a 28-pin BSSOP (SOIC-28) housing, it offers a 5000 Vrms insulation rating for robust signal integrity across isolated domains.

Feature Summary

• Integrates four independent digital isolation channels with isoPower technology for combined signal and power transfer.
• Provides high common-mode transient immunity of 75 kV/µs to maintain signal integrity in noisy environments.
• Supports wide supply voltage operation from 1.7 V to 5.5 V for compatibility with various logic families.
• Features low propagation delay and pulse width distortion for precise timing in high-speed applications.

Applications

• Industrial automation systems requiring galvanic isolation between control and field devices.
• Medical equipment needing reliable signal isolation for patient safety and noise reduction.
• Automotive electronics interfaces demanding high transient immunity and wide temperature operation.
• Power metering and energy monitoring systems utilizing isoPower for compact design.

Procurement Notes

Verify the specific suffix and package variant against the manufacturer's current datasheet before ordering. Confirm availability status as distribution channels may list limited stock or end-of-life notices. Ensure the selected component matches the required insulation ratings and channel configuration for your specific circuit design requirements.

Selection Notes

Select this component when a quad-channel isolator with integrated power delivery is required. Compare the 75 kV/µs CMTI rating against system noise levels to ensure adequate performance. Verify that the 28-pin SOIC package fits the PCB layout constraints and thermal management needs of the application environment.

Part Context

This part belongs to the ADUM642x family of isoPower digital isolators, which combine high-speed data isolation with power conversion in a single package. The ADUM6420 variant specifically provides a 4:0 channel configuration, meaning all four channels are isolated from the primary side to the secondary side without reverse isolation capability.

Replacement Considerations

Check the ADUM6421A series for variants with different channel configurations or enhanced specifications. Verify pin-to-pin compatibility with existing designs if substituting other quad-channel isolators. Consult the manufacturer's cross-reference guide for officially confirmed equivalent parts.