ADUM6421ABRNZ3-RL

Overview

The ADUM6421ABRNZ3-RL is a quad-channel digital isolator from Analog Devices, featuring an integrated isoPower DC-to-DC converter. It provides 5000 Vrms isolation voltage with magnetic coupling technology. The device supports unidirectional data transmission at speeds up to 100 Mb/s. It operates on a single 3.3V supply with a maximum power consumption of 190 mA. Key electrical parameters include a propagation delay of 10 ns and pulse width distortion of 1 ns. The component functions within a temperature range of -40°C to +125°C and is housed in a SOIC-28 package.

Feature Summary

• Integrates a low EMI DC-to-DC converter for isolated power delivery
• Provides high-speed digital signal isolation via magnetic coupling
• Supports shutdown functionality for power management

Applications

• Industrial automation systems requiring galvanic isolation
• Medical equipment needing reinforced insulation barriers
• Data acquisition modules with mixed-signal environments

Procurement Notes

Verify the specific suffix '3-RL' against official Analog Devices documentation to confirm tape-and-reel packaging and channel configuration. Ensure compatibility with existing PCB footprints for the SOIC-28 package. Confirm that the 3.3V input requirement aligns with system power rails before procurement.

Selection Notes

Select this component when both high-speed data isolation and integrated isolated power are required in a compact form factor. Compare against the ADUM6424 series if 5V operation is needed instead of 3.3V. Consider the ADUM6403 series if lower data rates or different pin counts suffice for the application design.

Part Context

This part belongs to the ADUM6421A family of quad-channel isolators. It combines four independent digital channels with an integrated switching regulator. The family is designed for applications demanding robust isolation performance and simplified power architecture in space-constrained designs.

Replacement Considerations

The ADUM6421ABRNZ5-RL serves as a direct substitute variant within the same family, differing primarily in packaging quantity rather than functional specifications.