ADUM4402CRIZ

Overview

The ADUM4402CRIZ is a quad-channel digital isolator from Analog Devices, housed in a 16-pin SOIC package. It operates on a supply voltage range of 2.7 V to 5.5 V with a typical operating current of 830 uA. The device supports data rates up to 90 Mb/s and features magnetic coupling isolation with an insulation voltage of 5000 Vrms. Key timing parameters include a propagation delay of 32 ns and rise/fall times of 3 ns. It functions within a temperature range of -40°C to +105°C.

Feature Summary

• Provides four independent unidirectional signal channels for high-speed data transmission across isolation barriers.
• Utilizes proprietary iCoupler technology to deliver robust magnetic coupling isolation without external components.
• Integrates ESD protection compliant with IEC 61000-4-2 standards for enhanced system reliability.

Applications

• Industrial automation systems requiring galvanic isolation between control logic and sensors.
• Medical equipment interfaces needing certified isolation for patient safety compliance.
• Power electronics monitoring circuits where high common-mode transient immunity is critical.

Procurement Notes

Verify the specific suffix (RL) against official Analog Devices documentation to confirm reel packaging specifications. Ensure the order matches the exact part number including all alphanumeric characters to avoid receiving non-reel variants or incorrect channel configurations. Cross-reference the datasheet revision date to confirm compatibility with your design requirements.

Selection Notes

Select this component when four isolated bidirectional or unidirectional channels are required at speeds up to 90 Mb/s. Compare power consumption against capacitive isolators if low quiescent current is a priority. Verify that the 5000 Vrms insulation rating meets the safety clearance requirements of your target application environment.

Part Context

This part belongs to the ADUM4402 series of digital isolators. It shares the same functional architecture as the ADUM4401 but offers four channels instead of two. The CRIZ suffix indicates the industrial temperature grade and SOIC-16 package variant. It is distinct from the ADUM6402 series which includes integrated DC/DC converters.

Replacement Considerations

The ADUM4401CRIZ serves as a dual-channel alternative within the same family. For applications requiring integrated power conversion, the ADUM6402CRIZ is a compatible upgrade path. Verify pinout compatibility before substituting with other quad-channel isolators from different manufacturers.