ADUM5402ARWZ

Overview

The ADUM5402ARWZ is a quad-channel digital isolator from Analog Devices, utilizing iCoupler technology for signal isolation and isoPower for integrated power conversion. It features four unidirectional channels with a data rate of 1 Mbps and an insulation voltage of 2500 Vrms. The device includes an integrated DC-to-DC converter providing up to 500 mW of regulated isolated power at 3.3 V or 5.0 V. Operating on a single supply between 3 V and 5.5 V, it offers a common-mode transient immunity of 25 kV/µs and operates within a temperature range of -40°C to +105°C in a 16-pin SOIC package.

Feature Summary

• Integrates isoPower isolated DC-to-DC converter to eliminate external isolation components
• Utilizes iCoupler magnetic coupling technology for high-speed signal transmission
• Provides robust electrical isolation with 2500 Vrms insulation rating
• Delivers regulated isolated power output to support downstream circuitry

Applications

• Industrial automation systems requiring galvanic isolation
• Medical equipment needing safe patient isolation barriers
• Power management circuits with isolated feedback loops
• Inverter drives and motor control applications

Procurement Notes

Verify the specific suffix ARWZ corresponds to the tube packaging format rather than reel variants like -RL. Confirm RoHS compliance status and moisture sensitivity level requirements for your assembly process. Ensure PCB layout adheres to AN-0971 guidelines regarding radiation standards due to the integrated switching converter. Check for any recent product change notices affecting assembly sites or materials.

Selection Notes

Select this component when a compact solution combining signal isolation and isolated power generation is required. It is suitable for designs where space constraints prevent separate isolated DC/DC converters. Consider the 1 Mbps data rate limit and 500 mW power budget against system needs. Evaluate the 16-SOIC footprint compatibility during the schematic capture phase.

Part Context

This part belongs to the ADuM540x series of quad-channel digital isolators. The series leverages chip-scale transformer technology to integrate both logic isolation and power conversion into a single package. This integration simplifies design complexity by reducing the number of discrete components needed for isolated interfaces.

Replacement Considerations

Check for direct substitutes within the ADuM540x family such as ADUM5401, ADUM5403, or ADUM5404 if channel configurations or pinouts differ. Verify that alternative parts maintain compatible isolation voltages and power output capabilities.