ADUM4400CRIZ-RL

Overview

The ADUM4400CRIZ-RL is a four-channel unidirectional digital isolator manufactured by Analog Devices Inc. It utilizes magnetic coupling technology to provide electrical isolation with a rated insulation voltage of 5000 Vrms. The device supports data rates up to 90 Mb/s and operates within a supply voltage range of 2.7 V to 5.5 V. Key timing parameters include a propagation delay of 32 ns, with rise and fall times of 3 ns each. It functions reliably across an operating temperature range from -40°C to +105°C. The component is housed in a SOIC-16 package and is supplied in reel packaging.

Feature Summary

• Integrates four independent unidirectional signal channels for high-density isolation applications
• Employs on-chip dual transformer technology for robust magnetic coupling isolation
• Includes integrated DC/DC converter capability to support isolated power delivery
• Features enhanced surface-to-surface creepage distance for improved safety compliance

Applications

• Industrial automation systems requiring galvanic isolation
• Motor control circuits for drive and feedback signals
• Medical equipment needing reinforced isolation barriers
• Power metering interfaces for energy measurement

Procurement Notes

Verify the specific suffix 'RL' indicates reel packaging when ordering. Confirm that the CRIZ variant meets the required thermal and mechanical specifications for the target application. Ensure compatibility with the system's voltage levels and signal integrity requirements before finalizing procurement. Cross-reference the manufacturer datasheet for any recent product change notices affecting this part number.

Selection Notes

Select this component when high-speed data transmission up to 90 Mb/s is required alongside significant isolation voltage. Consider the SOIC-16 footprint for PCB layout constraints. Evaluate the power consumption characteristics against system efficiency goals. Ensure the unidirectional nature aligns with the signal flow direction in the design architecture.

Part Context

This part belongs to the ADUM4400 series of digital isolators from Analog Devices. It is designed to replace traditional optocouplers in modern electronic designs. The series offers superior performance in terms of speed, power consumption, and reliability compared to legacy isolation technologies.

Replacement Considerations

Direct substitutes may include other ADUM4400 variants with different packaging or temperature ratings. Verify pinout compatibility and electrical specifications before substituting. Consult the manufacturer's cross-reference guide for approved alternative part numbers.