ADUM4401CRIZ

Overview

The ADUM4401CRIZ is a quad-channel digital isolator from Analog Devices, utilizing iCoupler magnetic coupling technology for signal transmission. 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 isolation voltage rating of 5000 Vrms and features enhanced ESD protection. It is housed in a 16-pin SOIC package with a wide operating temperature range from -40°C to +105°C. Typical rise and fall times are 3 ns, with a propagation delay of 32 ns.

Feature Summary

• Integrates four independent channels for bidirectional or unidirectional signal isolation using on-chip transformer technology.
• Provides high common-mode transient immunity and enhanced electrostatic discharge (ESD) protection capabilities.
• Maintains low power consumption while supporting high-speed data transmission across the isolation barrier.

Applications

• Industrial automation systems requiring galvanic isolation between control logic and power stages.
• Medical equipment needing reliable signal isolation for patient safety and noise reduction.
• Power electronics interfaces where high-voltage isolation is critical for system integrity.

Procurement Notes

Verify component authenticity through authorized distributors due to limited availability status. Confirm RoHS compliance and moisture sensitivity levels prior to assembly. Ensure storage conditions meet humidity requirements to prevent package damage. Cross-reference ordering suffixes to match specific packaging needs. Validate technical specifications against current datasheet revisions before finalizing procurement decisions.

Selection Notes

Select this component when four isolated channels are required within a single package footprint. Consider the 5000 Vrms isolation rating for applications demanding robust electrical separation. Evaluate the 90 Mb/s data rate capability against system timing requirements. Assess power consumption constraints relative to the 830 uA typical operating current. Compare package dimensions against available PCB space in the design layout.

Part Context

This part belongs to the ADuM4401 series of digital isolators designed for general-purpose isolation applications. It replaces older optocoupler solutions by offering smaller size, lower power, and higher reliability. The series is widely used in industrial and automotive environments where long-term stability is essential.

FAQ

What is the maximum data rate supported by the ADUM4401CRIZ?

The device supports a maximum data rate of 90 Mb/s per channel.

Does the ADUM4401CRIZ support bidirectional communication?

Yes, the internal architecture allows for both unidirectional and bidirectional signal transmission configurations.