ADUM5402ARWZ-RL

Overview

The ADUM5402ARWZ-RL is a quad-channel digital isolator from Analog Devices, utilizing iCoupler technology for magnetic coupling isolation. It integrates an isoPower isolated DC-to-DC converter capable of delivering up to 500 mW of regulated power at 3.3 V or 5.0 V outputs. The device provides four signal channels supporting data rates up to 25 Mbps (NRZ) with a common-mode transient immunity of 25 kV/µs. It operates within a supply voltage range of 3 V to 5.5 V and functions across a temperature range of -40°C to +105°C. Packaged in a 16-SOIC format, it eliminates the need for external isolated power supplies.

Feature Summary

• Integrates an isoPower isolated DC-to-DC converter providing regulated 3.3 V or 5.0 V output power up to 500 mW
• Utilizes iCoupler chip-scale transformer technology for magnetic coupling isolation of signals and power
• Offers four independent bidirectional signal channels with high common-mode transient immunity

Applications

• Industrial automation systems requiring galvanic isolation between control and sensor domains
• Medical equipment needing safe isolation for patient-connected circuits
• Power management systems monitoring high-voltage rails
• Data acquisition systems interfacing isolated analog-to-digital converters

Procurement Notes

Verify the specific suffix 'RL' indicates reel packaging when ordering. Confirm that the integrated DC/DC converter requirements match the target application's power budget, as the internal regulator supports up to 500 mW. Ensure PCB layout adheres to the manufacturer's guidelines regarding radiation standards and creepage distances due to the high-frequency switching nature of the isoPower converter. Check moisture sensitivity levels for proper storage and handling procedures.

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 the use of separate isolated DC/DC converters. Consider the 25 Mbps data rate capability for high-speed communication needs. Evaluate the thermal performance within the 16-SOIC package against the expected power dissipation of both the isolators and the integrated converter under maximum load conditions.

Part Context

This part belongs to the ADuM540x family of quad-channel digital isolators. Unlike the ADUM3402 which lacks an integrated converter, the ADUM5402 series specifically addresses applications needing isolated power alongside signal transmission. The ARWZ designation specifies the SOIC-16 package and commercial/industrial temperature range variants available from Analog Devices.

FAQ

What is the maximum output power of the integrated DC/DC converter?

The integrated isoPower converter can deliver up to 500 mW of regulated output power.

Does the ADUM5402 support bidirectional signal transmission?

Yes, the device features four bidirectional signal channels for data transmission across the isolation barrier.