ADUM3471WARSZ-RL7

Overview

The ADUM3471WARSZ-RL7 is a four-channel digital isolator from Analog Devices, housed in an SSOP-20 surface-mount package. It operates with a supply voltage range of 3 V to 5.5 V and supports data rates up to 25 Mb/s. The device provides bidirectional signal isolation with a rated insulation voltage of 2500 Vrms using magnetic coupling technology. It functions within an industrial temperature range of -40°C to +105°C and holds AEC-Q100 qualification for automotive applications.

Feature Summary

• Integrates internal transformer drivers for efficient magnetic coupling isolation
• Supports bidirectional data transmission across four independent channels
• Meets AEC-Q100 automotive reliability standards

Applications

• Automotive electronic control units requiring certified isolation
• Industrial communication interfaces such as CAN and LIN buses
• Medical equipment needing reinforced galvanic isolation

Procurement Notes

Verify the specific suffix WARSZ-RL7 against official datasheets to confirm the reel packaging configuration and RoHS compliance status. Ensure the bidirectional channel orientation matches the circuit design requirements. Confirm AEC-Q100 qualification is active for the specific lot if automotive deployment is intended. Cross-reference pinout diagrams to prevent integration errors during PCB layout.

Selection Notes

Select this component when bidirectional isolation is required for four channels simultaneously. The SSOP-20 package offers a compact footprint suitable for space-constrained designs. Verify that the 25 Mb/s data rate aligns with system timing constraints. Consider the 3 V to 5.5 V operating range to ensure compatibility with existing logic levels without additional level shifting.

Part Context

This part belongs to the ADUM347x series of high-speed digital isolators. It shares core architectural features with variants like the ADUM3470 and ADUM3472 but differs in channel directionality and packaging options. The series utilizes capacitive and magnetic coupling technologies to provide robust signal transmission across isolation barriers while maintaining low power consumption.

Replacement Considerations

The ADUM3471ARSZ-RL7 serves as a unidirectional alternative within the same series. Other family members include the ADUM3470 and ADUM3472 series devices. Verify pin compatibility and electrical specifications before substituting any variant.