ADUM3471WCRSZ-RL7

Overview

The ADUM3471WCRSZ-RL7 is a four-channel digital isolator from Analog Devices, featuring an integrated transformer driver for magnetic coupling isolation. It operates within a supply voltage range of 3 V to 5.5 V and supports bidirectional data transmission at speeds up to 25 Mb/s. The device provides 2500 Vrms insulation voltage and exhibits a propagation delay of 60 ns. It is designed for industrial applications with an operating temperature range spanning from -40°C to +105°C. The component is qualified under AEC-Q100 standards and is housed in a compact SSOP-20 surface-mount package.

Feature Summary

• Integrates high-speed capacitive isolation technology with an on-chip transformer driver to minimize external component requirements.
• Provides robust galvanic isolation between circuits with a specified insulation voltage rating suitable for demanding environments.
• Supports bidirectional data flow across all four channels, facilitating complex communication protocols.
• Meets automotive reliability standards through AEC-Q100 qualification for extended temperature operation.

Applications

• Industrial automation systems requiring isolated communication interfaces
• Automotive electronics utilizing CAN bus or LIN bus isolation
• Medical equipment needing patient isolation barriers
• Power monitoring systems with high-voltage side sensing

Procurement Notes

Verify the specific suffix 'WCRSZ' against official Analog Devices documentation to confirm AEC-Q100 automotive qualification status. Ensure the reel packaging matches production requirements. Cross-reference the datasheet revision history for any recent design changes that may affect pin compatibility or electrical characteristics before finalizing procurement orders.

Selection Notes

Select this component when automotive-grade reliability is required alongside high channel count isolation. The integrated transformer driver simplifies PCB layout compared to discrete solutions. Verify that the 25 Mb/s data rate meets system timing constraints. Confirm that the SSOP-20 package dimensions fit the available board space and thermal management strategy.

Part Context

This part belongs to the ADUM347x family of four-channel digital isolators. The 'W' indicates automotive qualification, while 'C' typically denotes commercial temperature range variants within the broader series. These devices are designed to replace bulky optocouplers in modern high-density designs.

Replacement Considerations

Check Analog Devices documentation for direct pin-compatible substitutes within the ADUM347x series. Verify if non-automotive versions like ADUM3471CRSZ meet functional needs if automotive qualification is not strictly required. Compare electrical parameters carefully before substitution.