ADUM3474WARSZ

Overview

The ADUM3474WARSZ is a four-channel digital isolator from Analog Devices, housed in an SSOP-20 surface-mount package. It operates on 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 utilizes magnetic coupling technology to provide an isolation voltage rating of 2500 Vrms. It features an integrated transformer driver and maintains signal integrity with a propagation delay of 60 ns. The component is designed for industrial applications, functioning reliably within an operating temperature range of -40°C to +105°C.

Feature Summary

• Integrates four independent bidirectional channels with built-in transformer drivers for compact system design.
• Employs iCoupler magnetic coupling technology to achieve high isolation voltage ratings without external components.
• Supports data rates up to 25 Mb/s with low propagation delay for precise timing synchronization.

Applications

• Industrial automation systems requiring galvanic isolation between microcontrollers and sensors.
• Medical equipment interfaces needing certified isolation for patient safety compliance.
• Power electronics control circuits isolating gate drivers from logic controllers.

Procurement Notes

Verify the specific suffix against official Analog Devices documentation to confirm packaging type and qualification status. Confirm availability through authorized distributors as supply may be restricted. Ensure the selected variant matches the required thermal and electrical specifications for the target application environment.

Selection Notes

Select this component when four isolated bidirectional channels are required in a single package. Compare performance metrics such as propagation delay and power consumption against alternative isolators. Verify that the SSOP-20 footprint fits the PCB layout constraints and that the isolation voltage meets system safety standards.

Part Context

This part belongs to the ADUM3474 series of digital isolators. It shares core architectural features with other members of the family but differs in channel configuration and directionality. The series is designed to replace traditional optocouplers in modern interface designs.

Replacement Considerations

Check for direct substitutes like the ADUM3471 or ADUM3473 if unidirectional channels suffice. Verify pin compatibility and electrical parameters before swapping with other iCoupler devices.