ADUM3150BRSZ

Overview

The ADUM3150BRSZ is a six-channel SPI digital isolator from Analog Devices Inc., utilizing iCoupler magnetic coupling technology. It provides 3750 Vrms isolation voltage and supports data rates up to 40 Mbps with a propagation delay of 14 ns. The device operates on a 3 V to 5.5 V supply, features unidirectional channels, and is housed in a 20-SSOP package. It includes integrated delay clock functionality for SPI interfaces.

Feature Summary

• Integrates six isolated channels optimized for serial peripheral interface communication
• Utilizes iCoupler magnetic coupling technology for galvanic isolation
• Supports high-speed SPI clock rates up to 40 MHz
• Includes integrated delay clock for precise timing control

Applications

• Isolated serial peripheral interfaces in industrial automation
• Distributed control systems and programmable logic controllers
• Sensor monitoring applications requiring high-speed data transfer

Procurement Notes

Verify the specific suffix BRSZ against the manufacturer's datasheet to confirm pinout and electrical characteristics. Ensure the 20-SSOP package dimensions match the target PCB footprint. Confirm that the 3750 Vrms isolation rating meets the safety requirements of the application environment.

Selection Notes

Select this component when a compact solution for isolating multiple SPI lines is required. It replaces discrete optocoupler solutions by integrating six channels into a single package. Consider the 40 Mbps speed limit and 14 ns delay when designing high-frequency signal paths.

Part Context

This part belongs to the ADuM315x SPIsolator series, designed specifically for SPI communication systems. It offers significant size and cost reductions compared to traditional optocoupler-based designs while providing higher clock rates and better integration for system designers.

Replacement Considerations

The ADUM3151ARSZ is a parameter-equivalent alternative within the same family, offering seven channels instead of six. Verify channel count requirements before substitution.