ADUM4400ARIZ

Overview

The ADUM4400ARIZ is a quad-channel digital isolator manufactured by Analog Devices Inc. It features magnetic coupling technology with an insulation voltage of 5000 Vrms and supports unidirectional data transmission at a rate of 1 Mb/s. The device operates within a supply voltage range of 2.7 V to 5.5 V, consuming 830 uA of working power current. It exhibits a propagation delay of 32 ns and typical rise/fall times of 3 ns. The component is housed in a 16-pin SOIC package, suitable for surface mount installation, and functions reliably across a temperature range of -40 C to +105 C.

Feature Summary

• Provides enhanced isolation with high common-mode transient immunity exceeding 25 kV/µs
• Integrates four independent channels for efficient multi-signal isolation
• Utilizes cmosOSI technology for reliable magnetic signal transmission

Applications

• Industrial automation systems requiring galvanic isolation
• Medical equipment needing reinforced safety barriers
• Power metering applications with high voltage separation needs

Procurement Notes

Verify the specific suffix ARIZ corresponds to the standard SOIC-16 package and lead-free RoHS compliance when sourcing. Confirm that the component meets the required creepage distance specifications for your application's safety standards. Ensure compatibility with the intended operating temperature range before finalizing procurement decisions.

Selection Notes

Select this component when a quad-channel solution with 1 Mb/s data rate is sufficient for the system requirements. Consider the 5000 Vrms insulation rating for high-voltage isolation needs. Evaluate the 16-pin SOIC footprint against available PCB space constraints during the design phase.

Part Context

This part belongs to the ADUM4400 series of general-purpose digital isolators from Analog Devices. It is designed to replace bulky optocouplers in modern electronic designs, offering superior performance in speed, power consumption, and reliability while maintaining compact form factors suitable for dense circuit board layouts.

Replacement Considerations

Direct substitutes include other quad-channel isolators from the same family such as the ADUM4401 or ADUM4402, provided their respective data rates align with system timing requirements. Verify pinout compatibility and insulation ratings before implementing any cross-replacement.