ADUM3151ARSZ

Overview

The ADUM3151ARSZ is a seven-channel digital isolator optimized for SPI interfaces, utilizing iCoupler magnetic coupling technology. It provides 3750Vrms isolation with a data rate of 2Mbps and a common-mode transient immunity of 25kV/µs. The device operates on a 3V to 5.5V supply, features propagation delays of 25ns maximum, and functions within a -40°C to 125°C temperature range in a 20-SSOP package.

Feature Summary

• Optimized for isolated serial peripheral interface (SPI) communication systems
• Integrates high-speed clock and data channels with low propagation delay
• Provides robust signal isolation via magnetic coupling technology

Applications

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

Procurement Notes

Verify the specific suffix against official Analog Devices documentation to confirm packaging and reel specifications. Ensure compatibility with existing PCB footprints and thermal management requirements before finalizing procurement decisions.

Selection Notes

Select this component when designing isolated SPI links requiring integration of multiple control signals. Consider the 20-SSOP package constraints and verify that the 2Mbps data rate meets system throughput requirements compared to higher-speed alternatives.

Part Context

Part of the ADuM315x SPIsolator series designed to replace optocouplers in SPI applications. This series offers reduced size and cost while supporting higher clock rates than traditional solutions.

Replacement Considerations

ADUM3151ARSZ-RL7 is a parameter-equivalent alternative available from distributors.