ADUM4152ARIZ

Overview

The ADUM4152ARIZ is a seven-channel digital isolator from Analog Devices, designed specifically for SPI interfaces. It features magnetic coupling technology with a 5000 Vrms isolation voltage and operates within a -40°C to +125°C temperature range. The device supports data rates up to 34 Mb/s on high-speed channels and 250 kb/s on auxiliary channels. Packaged in a 20-lead SOIC, it provides bidirectional signal isolation with configurable channel directionality.

Feature Summary

• Optimized for SPI interface isolation with dedicated high-speed and auxiliary channels
• Provides robust galvanic isolation via magnetic coupling technology
• Supports bidirectional signal transmission with flexible channel directionality

Applications

• SPI-based industrial communication systems
• Isolated sensor interfaces requiring high noise immunity
• Medical equipment with strict isolation requirements

Procurement Notes

Verify the specific suffix (RL vs ARIZ) against your bill of materials, as packaging differs. Confirm current availability status directly with authorized distributors, as supply constraints may apply. Ensure the 20-lead SOIC package footprint matches your PCB design before ordering.

Selection Notes

Select this component when SPI protocol isolation is required with high common-mode transient immunity. Compare channel count and isolation voltage against system safety standards. Consider the bidirectional nature of auxiliary channels for complex SPI configurations involving multiple slave devices or bidirectional data lines.

Part Context

This part belongs to the ADUM4152 series of SPIsolator digital isolators. It shares the core magnetic coupling architecture with other variants but differs in package type and orientation. The series is designed to replace traditional optocouplers in high-speed digital isolation applications.

Replacement Considerations

The ADUM4152ARSZ is a related variant offering unidirectional channels in an SSOP-20 package. Verify channel directionality requirements and package dimensions before substitution, as functional behavior differs between bidirectional and unidirectional designs.