ADUM3473ARSZ-RL7

Overview

The ADUM3473ARSZ-RL7 is a quad-channel digital isolator from Analog Devices, utilizing magnetic coupling technology for signal transmission. It features bidirectional data channels with an integrated transformer driver, supporting data rates up to 25 Mb/s. The device operates within a supply voltage range of 3 V to 5.5 V and provides 2500 Vrms isolation voltage. Packaged in a 20-pin SSOP, it ensures reliable performance across an operating temperature range of -40°C to +105°C.

Feature Summary

• Integrates four independent bidirectional data channels with built-in transformer drivers
• Employs on-chip switching power converter technology for isolated power delivery
• Provides high-speed signal transmission with low propagation delay characteristics

Applications

• Industrial automation systems requiring galvanic isolation
• Medical equipment needing safe patient isolation barriers
• Power metering applications with high-voltage separation needs

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 package dimensions match your PCB footprint requirements. Check current availability as distribution may vary by region.

Selection Notes

Select this component when bidirectional communication is required across an isolation barrier. The integrated power converter simplifies design by eliminating external isolated DC/DC converters. Consider the 2500 Vrms rating against system voltage requirements. Evaluate the 25 Mb/s speed capability against application timing constraints.

Part Context

This part belongs to the ADUM3473 series of digital isolators. It shares the same functional architecture as the ADUM3473CRSZ variant but differs in industrial temperature grading and package options. Both variants utilize the same magnetic coupling isolation technology.

Replacement Considerations

The ADUM3473CRSZ-RL7 serves as a direct alternative with identical electrical specifications. Verify that the commercial grade temperature range meets your environmental requirements before substitution.