ADUM3473CRSZ-RL7

Overview

The ADUM3473CRSZ-RL7 is a four-channel digital isolator from Analog Devices, utilizing magnetic coupling technology for signal transmission. It operates within a supply voltage range of 3 V to 5.5 V and supports data rates up to 25 Mb/s. The device features bidirectional channels with a propagation delay of 60 ns and an insulation voltage rating of 2500 Vrms. It is housed in a 20-lead SSOP package and functions reliably across an operating temperature range of -40°C to +105°C.

Feature Summary

• Integrates internal transformer drivers for efficient magnetic coupling isolation
• Provides bidirectional signal transmission across four independent channels
• Delivers high common-mode transient immunity for noise-resistant operation

Applications

• Industrial automation control systems requiring galvanic isolation
• Medical equipment interfaces needing reinforced safety isolation
• Power electronics gate drive circuits for motor control

Procurement Notes

Verify the specific suffix RL7 indicates reel packaging when sourcing. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure the SSOP-20 footprint matches your PCB layout constraints. Check for any recent product change notices that may affect pinout or electrical characteristics.

Selection Notes

Select this component when bidirectional communication is required across isolated boundaries. The 2500 Vrms rating suits applications demanding robust dielectric strength. Consider the 60 ns propagation delay for timing-sensitive designs. The wide temperature range supports harsh industrial environments without derating.

Part Context

This part belongs to the ADUM347x series of general-purpose digital isolators. It shares the same core architecture as variants like ADUM3470 and ADUM3472 but differs in channel directionality and specific electrical parameters. The series is designed to replace traditional optocouplers in modern interface applications.

Replacement Considerations

Direct substitutes include other ADUM347x variants such as ADUM3470ARSZ-RL7 or ADUM3472ARSZ-RL7, provided the directionality requirements match. Verify that the replacement maintains the same SSOP-20 package and voltage ratings.