ADUM4402ARIZ-RL

Digital Isolators Overview

The ADUM4402ARIZ-RL is a quad-channel digital isolator from Analog Devices, utilizing iCoupler magnetic coupling technology. It provides 5000 Vrms isolation voltage with a minimum common-mode transient immunity of 25 kV/µs. The device supports data rates up to 100 Mbps per channel and operates within a supply voltage range of 2.7 V to 5.5 V. Key electrical parameters include a maximum propagation delay of 32 ns, typical rise/fall times of 3 ns, and a pulse width distortion of 100 ns. It functions in an industrial temperature range of -40°C to +105°C and is housed in a 16-lead SOIC package.

Digital Isolators Feature Summary

• Integrates four independent bidirectional channels for high-density signal isolation using proprietary magnetic coupling technology.
• Delivers robust performance with a minimum common-mode transient immunity of 25 kV/µs to withstand rapid voltage changes.
• Incorporates integrated DC/DC converter capability to provide isolated power or support external isolated power supplies.
• Features low propagation delay and jitter characteristics suitable for high-speed serial communication interfaces.

Digital Isolators Applications

• Isolated gate drive circuits for power electronics
• Industrial process control systems requiring signal isolation
• Medical equipment with safety isolation requirements
• Data acquisition systems with multiple isolated channels

Digital Isolators Procurement Notes

Verify the specific suffix 'RL' indicates reel packaging when ordering. Confirm the operating temperature range matches application requirements as this variant supports up to 105°C. Ensure the 16-SOIC footprint aligns with PCB layout constraints. Check for RoHS compliance status if required by regional regulations. Validate that the 5000 Vrms isolation rating meets system safety standards.

Digital Isolators Selection Notes

Select this component when four isolated channels are required in a compact form factor. Consider the 25 kV/µs CMTI rating for environments with high dv/dt noise. Evaluate the 32 ns max propagation delay against timing constraints of the target interface. Compare power consumption if battery operation is critical, noting the internal regulator options.

Digital Isolators Part Context

This part belongs to the ADuM440x series of general-purpose digital isolators. It shares the iCoupler architecture with other devices in the family but offers four channels instead of two or one. The 16-lead SOIC package allows for efficient board space utilization compared to wider packages used in lower-density isolators.

Digital Isolators Replacement Considerations

Direct substitutes include other ADuM440x variants with compatible pinouts and electrical specifications. Verify that any replacement maintains the same isolation voltage rating and CMTI performance. Ensure the alternative device supports the required data rate and operating temperature range.