ADUM3481ARSZ-RL7

Overview

The ADUM3481ARSZ-RL7 is a small, quad-channel digital isolator from Analog Devices, utilizing iCoupler magnetic coupling technology. It provides 3750 Vrms isolation voltage with a data rate of 1 Mb/s and a typical propagation delay of 90 ns. The device operates on a single supply voltage ranging from 3 V to 5.5 V, consuming 2.8 mA or 4.3 mA depending on the channel configuration. It features bidirectional communication capability within its unidirectional channel architecture, housed in a 20-SSOP package.

Feature Summary

• Integrates four independent digital channels using proprietary iCoupler magnetic coupling technology for signal transmission across isolation barriers.
• Provides robust electrical isolation rated at 3750 Vrms, ensuring safety compliance in high-voltage environments.
• Supports bidirectional data transfer capabilities within its specific channel directionality configuration.

Applications

• Industrial automation systems requiring galvanic isolation between control logic and power stages
• Medical equipment interfaces needing certified isolation for patient safety
• Power metering circuits isolating measurement components from high-voltage mains

Procurement Notes

Verify component authenticity through authorized distributors due to limited availability status. Confirm RoHS compliance details directly with the manufacturer documentation. Ensure the SSOP-20 package variant matches your PCB footprint requirements before finalizing orders.

Selection Notes

Select this part when a quad-channel solution with 1 Mb/s speed is required. Compare against ADUM3480 for higher speed options or ADUM3481 variants for different packaging. Consider thermal dissipation limits of 2.47 W during design integration.

Part Context

This component belongs to the ADUM348x series of small, quad-channel digital isolators. It shares architectural similarities with the ADUM3480 and ADUM3481 families, differing primarily in channel directionality and specific performance metrics like propagation delay and current consumption.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material. Consult Analog Devices for direct replacements based on specific application constraints.