ADUM3151ARSZ-RL7

Overview

The ADUM3151ARSZ-RL7 is a seven-channel digital isolator from the SPIsolator series, utilizing iCoupler magnetic coupling technology. It provides 3750Vrms isolation and supports data rates up to 2Mbps with a maximum propagation delay of 25ns. The device features a common-mode transient immunity of 25kV/µs and operates on a 3V to 5.5V supply. Packaged in a 20-lead SSOP, it integrates five input channels and two output channels for unidirectional SPI signal isolation.

Feature Summary

• Optimized for isolated serial peripheral interface (SPI) communication systems
• Integrates high-speed clock and data channels with low propagation delay
• Provides robust noise immunity via magnetic coupling technology
• Combines multiple signal paths into a single compact package

Applications

• Distributed control systems in industrial automation
• Programmable logic controllers
• Sensor monitoring applications
• Motor control systems

Procurement Notes

Verify the specific suffix RL7 indicates tape and reel packaging when ordering. Confirm the 20-SSOP footprint matches your PCB design constraints. Ensure voltage levels align with the 3V to 5.5V operating range. Check for RoHS compliance requirements if applicable to your manufacturing standards.

Selection Notes

Select this component when high-density SPI isolation is required within a limited board area. It serves as a direct replacement for discrete optocoupler solutions requiring fewer external components. Consider the 2Mbps data rate limit for system timing requirements. Evaluate the 25kV/µs CMTI rating against local noise environments.

Part Context

This part belongs to the ADuM315x family of SPIsolator digital isolators. These devices are designed to replace traditional optocouplers by offering significantly smaller footprints and higher speeds. The family includes variants with different channel configurations and voltage ratings to suit various isolation needs.

Replacement Considerations

ADUM3151ARSZ is a compatible alternative available in cut-tape or tube formats instead of the reel variant.