ADUM5403CRWZ-RL

Overview

The ADUM5403CRWZ-RL is a quad-channel digital isolator from Analog Devices, featuring an integrated DC-to-DC converter. It provides four independent isolation channels with unidirectional data transmission at a maximum data rate of 25 Mb/s. The device operates within a supply voltage range of 3 V to 5.5 V and offers an insulation voltage of 2500 Vrms. Key electrical parameters include a propagation delay of 60 ns, rise/fall times of 2.5 ns, and a pulse width distortion of less than 3 ns. It functions reliably across an operating temperature range of -40°C to +105°C and is housed in a 16-SOIC package.

Feature Summary

• Integrates a high-efficiency DC-to-DC converter to eliminate the need for external isolated power supplies.
• Provides robust magnetic coupling isolation for reliable signal transmission across galvanic barriers.
• Supports high-speed data communication with low propagation delay and minimal pulse width distortion.

Applications

• Industrial automation systems requiring multi-channel signal isolation
• Medical equipment needing reinforced isolation for patient safety
• Power electronics monitoring and control circuits

Procurement Notes

Verify the specific suffix (e.g., -RL) against the manufacturer's current datasheet to confirm packaging and reel specifications. Ensure compatibility with your PCB footprint and reflow soldering profile. Check for any recent product change notices or alternate assembly site declarations that may affect component sourcing or quality assurance requirements.

Selection Notes

Select this component when four isolated channels are required alongside integrated power conversion. Compare total system BOM cost against discrete isolators plus external converters. Consider the SOIC-16 package constraints and thermal dissipation capabilities relative to your enclosure design. Verify that the 2500 Vrms insulation rating meets your application's safety standards.

Part Context

This part belongs to the ADuM family of capacitive and magnetic isolation products from Analog Devices. It complements other variants like the ADUM5200 series by offering higher channel density with integrated power management. The series is designed for applications demanding high reliability and compact form factors in noisy electrical environments.

Replacement Considerations

Direct substitutes include other ADUM540x series variants with matching pinouts and electrical characteristics. Verify functional equivalence regarding the integrated DC/DC converter performance and isolation ratings before substitution.