ADUM4401BRIZ-RL

Overview

The ADUM4401BRIZ-RL is a quad-channel digital isolator from Analog Devices, utilizing iCoupler magnetic coupling technology. It operates within a supply voltage range of 2.7 V to 5.5 V and supports data rates up to 90 Mb/s. The device provides an insulation voltage of 5000 Vrms with unidirectional channel polarity. Key timing parameters include a propagation delay of 32 ns and rise/fall times of 3 ns typical. It functions in temperatures from -40°C to +105°C and draws 830 uA operating current.

Feature Summary

• Integrates four independent isolation channels using on-chip transformer technology for high-speed signal transmission.
• Provides enhanced system-level electrostatic discharge protection compliant with IEC 61000-4-x standards.
• Supports bidirectional communication and level translation between 3.3 V and 5 V logic domains.

Applications

• Industrial automation systems requiring robust galvanic isolation
• Medical equipment needing certified safety isolation barriers
• Power metering applications with high common-mode transient immunity

Procurement Notes

Verify the specific suffix RL indicates reel packaging when sourcing. Confirm availability status as distribution may list limited stock or end-of-life conditions. Ensure the SOIC-16 package width matches PCB layout constraints. Cross-reference the manufacturer part number with official Analog Devices documentation to confirm pinout compatibility before integration.

Selection Notes

Select this component for designs requiring four isolated channels in a single package. Consider the 90 Mbps data rate limit for high-speed serial interfaces. Evaluate the 5000 Vrms insulation rating against regulatory safety requirements. Compare power consumption at 830 uA against low-power alternatives if battery operation is critical.

Part Context

This part belongs to the ADUM440x series of digital isolators. It shares the iCoupler architecture with variants like ADUM4402 but differs in channel count and specific electrical characteristics. The BRIZ suffix denotes the commercial temperature grade and SOIC-16 package configuration.

Replacement Considerations

Official substitutes include ADUM4401ARIZ-RL and ADUM4401BRWZ-RL. Verify that alternative packages maintain the same pinout and thermal performance. Check datasheet updates for any changes in creepage distances or safety approvals.