ADUM3472ARSZ-RL7

Overview

The ADUM3472ARSZ-RL7 is a quad-channel digital isolator from Analog Devices, housed in an SSOP-20 package. It features magnetic coupling isolation with a rated insulation voltage of 2500 Vrms and supports data rates up to 25 Mb/s. The device operates bidirectionally across a supply voltage range of 3 V to 5.5 V, with a typical quiescent current of 48 mA. It exhibits a propagation delay of 55 ns and maintains signal integrity within a pulse width distortion limit of 40 µs. Designed for industrial environments, it functions reliably between -40°C and +105°C.

Feature Summary

• Integrates PWM controller and transformer driver for isolated DC-to-DC converter applications
• Provides four independent bidirectional digital channels for high-speed data transmission
• Utilizes on-chip transformer technology for robust magnetic coupling isolation

Applications

• Isolated power supply control circuits
• Industrial automation systems requiring galvanic isolation
• Motor drive interfaces with integrated gate driving capabilities

Procurement Notes

Verify the specific suffix RL7 indicates reel packaging when ordering. Confirm that the ARS designation corresponds to the required temperature grade and package variant for your design. Ensure compatibility with existing PCB footprints for the SSOP-20 form factor before finalizing procurement plans.

Selection Notes

Select this component when both high-speed digital isolation and integrated power stage driving are required in a single package. It is suitable for designs needing to minimize board space by combining isolation and power management functions. Consider the 48 mA quiescent current consumption during power budgeting for low-power applications.

Part Context

This part belongs to the ADUM347x series of digital isolators from Analog Devices. These devices are engineered to replace traditional optocouplers and discrete transformer drivers in modern electronic designs. The series offers improved performance metrics including lower power consumption and higher reliability compared to legacy isolation technologies.

Replacement Considerations

Direct replacements include other members of the ADUM347x family such as the ADUM3471 or ADUM3473, depending on whether unidirectional or bidirectional channel configurations are needed. Verify pinout compatibility and electrical specifications before substituting.