ADUM3152ARSZ

Overview

The ADUM3152ARSZ is a seven-channel digital isolator designed for SPI interfaces, utilizing magnetic coupling technology. It operates within a supply voltage range of 3 V to 5.5 V and provides an isolation voltage of 3750 Vrms. The device features four high-speed channels with low propagation delay and three additional data channels operating at 250 kbps. It supports up to 17 MHz SPI clock speeds and offers a common-mode transient immunity of 25 kV/µs. Packaged in a 20-lead SSOP, it functions reliably between -40°C and +125°C.

Feature Summary

• Integrates multiple signal paths into a single package for efficient SPI bus isolation
• Provides robust galvanic isolation via magnetic coupling technology
• Supports bidirectional communication with configurable auxiliary channel directionality

Applications

• Isolating master-slave SPI communication links
• Protecting control circuits in industrial automation systems
• Signal isolation in multi-drop sensor networks

Procurement Notes

Verify the specific suffix ARSZ corresponds to the tube packaging format when ordering. Confirm that the component meets RoHS compliance requirements for your region. Ensure the procurement source is authorized to guarantee authenticity. Check for moisture sensitivity labeling prior to soldering. Validate that the 20-lead SSOP footprint matches your PCB design constraints.

Selection Notes

Select this component when a high channel count is required for complex SPI architectures. It is suitable for designs needing both high-speed data transfer and lower-speed auxiliary signals. Consider the 20-lead SSOP package size against available board space. Evaluate the 3750 Vrms isolation rating against system safety standards. Ensure the operating temperature range aligns with the environmental conditions of the final application.

Part Context

This part belongs to the ADUM3152 series of digital isolators from Analog Devices. The series focuses on providing integrated solutions for serial peripheral interface applications. These devices replace traditional transformer or optocoupler-based isolation schemes. They offer improved performance in terms of speed and power consumption compared to legacy technologies.

Replacement Considerations

Check for ADUM3152ARSZ-RL7 if reel packaging is preferred over tubes. Verify compatibility with other ADUM315x variants if channel count adjustments are needed.