ADUM4401ARIZ-RL

Overview

The ADUM4401ARIZ-RL is a quad-channel digital isolator from Analog Devices, utilizing 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 insulation voltage of 5000 Vrms and features unidirectional channel polarity. Key electrical parameters include a typical propagation delay of 32 ns and a working supply current of 830 uA. It is housed in a 16-pin SOIC package and functions reliably across an operating temperature range of -40°C to +105°C.

Feature Summary

• Integrates four independent channels for high-density signal isolation using capacitive or magnetic coupling principles.
• Provides enhanced electrostatic discharge (ESD) protection capabilities to ensure robust performance in noisy environments.
• Supports bidirectional logic interface compatibility with standard CMOS and TTL logic levels.

Applications

• Industrial automation systems requiring galvanic isolation between control and power stages.
• Medical equipment needing safe patient isolation and signal integrity.
• Power metering applications involving high-voltage sensing interfaces.

Procurement Notes

Verify the specific suffix 'I' indicates industrial temperature grade and 'Z' denotes lead-free RoHS compliance. Confirm the '-RL' suffix corresponds to reel packaging specifications. Ensure the source document explicitly lists this exact part number to avoid confusion with non-reel variants or different temperature grades.

Selection Notes

Select this component when four isolated channels are required within a single package to save board space. Consider the 90 Mb/s data rate limit for high-speed communication needs. Evaluate the 5000 Vrms insulation rating against system safety requirements. Check if the unidirectional nature aligns with the circuit design directionality.

Part Context

This part belongs to the ADUM4401 series of digital isolators manufactured by Analog Devices. It is designed to replace traditional optocouplers in modern applications, offering superior performance in speed, power consumption, and reliability. The series is widely used in industrial and automotive sectors for reliable signal transmission across isolation barriers.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify pinout and parameter compatibility before considering any alternative components from other manufacturers.