ADUM6422ABRNZ3

Overview

The ADUM6422ABRNZ3 is a quad-channel digital isolator from Analog Devices, featuring an integrated isoPower isolated DC-to-DC converter. It provides 5000 Vrms insulation voltage and supports data rates up to 100 Mb/s with unidirectional signal flow. The device operates on a 3.3V supply, drawing 190 mA of working power current. It exhibits a propagation delay of 10 ns and pulse width distortion of 1 ns. The component is housed in a 28-pin SOIC package and functions within a temperature range of -40°C to +125°C.

Feature Summary

• Integrates an isolated DC-to-DC converter for simplified power delivery across isolation barriers
• Provides high common-mode transient immunity for reliable signal transmission in noisy environments
• Offers four independent data channels within a compact surface-mount package

Applications

• Industrial automation systems requiring galvanic isolation
• Medical equipment needing safe patient isolation
• Power metering applications with high-voltage separation requirements

Procurement Notes

Verify the specific suffix (e.g., NZ3) against official Analog Devices documentation to confirm pinout and electrical characteristics. Confirm availability status as distribution channels may list limited stock or end-of-life conditions. Ensure the selected variant matches the required 3.3V operation and SOIC-28 packaging constraints for your design.

Selection Notes

Select this component when a single-chip solution for both data isolation and isolated power generation is required. It is suitable for designs needing 5kV isolation with low EMI characteristics. Consider the 190mA current consumption and thermal dissipation capabilities within the SOIC-28 package when designing the PCB layout and heat management strategy.

Part Context

This part belongs to the ADuM642xA family of quad-channel digital isolators. These devices combine magnetic coupling technology with integrated power conversion to reduce system complexity. The series is designed for applications demanding robust isolation performance in a small footprint, replacing discrete solutions that require separate isolated power supplies.

Replacement Considerations

Check for direct substitutes within the ADuM642x family, such as variants with different voltage ratings or packaging options. Verify compatibility with existing board layouts and thermal requirements before substituting.