ADUM4150BRIZ-RL

Overview

The ADuM4150BRIZ-RL is a six-channel digital isolator from Analog Devices, optimized for isolated serial peripheral interfaces (SPI). It features a 5000 Vrms isolation rating and supports data rates up to 40 Mbps. The device provides a common-mode transient immunity of 25 kV/µs and operates within a temperature range of -40°C to +125°C. Packaged in a 20-pin SOIC, it integrates high-speed CMOS technology for reliable signal transmission across isolation barriers.

Feature Summary

• Six-channel architecture designed specifically for isolated SPI communication
• High common-mode transient immunity ensures signal integrity in noisy environments
• Optimized for low propagation delay and minimal pulse width distortion

Applications

• Isolated SPI interface connections in industrial automation systems
• Data acquisition systems requiring galvanic isolation between microcontrollers and sensors
• Medical equipment with strict isolation safety requirements
• Power monitoring circuits involving high-voltage side communication

Procurement Notes

Verify the complete part number including the suffix to ensure correct packaging and specifications. Confirm that the required isolation voltage and channel count match your system design. Check current availability status as supply may be limited. Ensure compatibility with your operating temperature range and package type before ordering.

Selection Notes

Select this component when six isolated channels are required for SPI applications. Consider the 5000 Vrms isolation rating for safety compliance. Evaluate the 40 Mbps speed against your maximum clock frequency needs. Compare the 20-SOIC package dimensions with your PCB layout constraints. Verify thermal performance requirements against the specified operating temperature range.

Part Context

This part belongs to the ADuM family of digital isolators utilizing capacitive coupling technology. It replaces older optocoupler solutions by offering higher speed and lower power consumption. The BRIZ suffix indicates specific packaging and tape/reel configuration. It is part of Analog Devices' portfolio for robust isolation solutions.

Replacement Considerations

Check for direct pin-compatible alternatives within the ADuM series. Verify that substitute parts maintain the same 6-channel configuration and SPI optimization. Ensure replacement components meet the same 5000 Vrms isolation and 25 kV/µs CMTI specifications.