ADUM131D1BRZ-RL7

Overview

The ADUM131D1BRZ-RL7 is a triple-channel digital isolator from the ADuM131D series, utilizing iCoupler magnetic coupling technology. It features a 2:1 channel configuration with two unidirectional forward channels and one reverse channel. The device operates within a supply voltage range of 1.8 V to 5 V and supports data rates up to 150 Mb/s. Key electrical specifications include an insulation voltage of 3000 Vrms, a propagation delay of 7.2 ns, and a typical rise/fall time of 2.5 ns. It maintains a pulse width distortion of 0.5 ns and functions across an industrial temperature range of -40°C to +125°C.

Feature Summary

• Implements robust iCoupler magnetic coupling for high-speed digital isolation without external transformers.
• Provides asymmetric 2:1 channel architecture suitable for mixed-direction signal transmission.
• Supports high common-mode transient immunity essential for noisy industrial environments.

Applications

• Industrial automation systems requiring galvanic isolation between microcontrollers and sensors.
• Medical equipment interfaces needing reliable signal separation in safety-critical applications.
• Power electronics control circuits where high-voltage noise immunity is required.

Procurement Notes

Verify the specific suffix 'RL7' indicates reel packaging when sourcing components. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure compatibility with SOIC-16 footprint requirements during PCB layout design. Cross-reference datasheet revisions to validate parameter consistency for production runs.

Selection Notes

Select this component when a 2:1 directional isolation topology is required rather than symmetric channels. Consider the 150 Mb/s data rate limit against system throughput needs. Evaluate the 3000 Vrms insulation rating against circuit isolation requirements. Assess power consumption at 8.8 mA against thermal constraints in enclosed enclosures.

Part Context

This part belongs to the ADuM131D family of triple-channel digital isolators. It shares architectural similarities with the ADUM131D1BRWZ but differs in packaging format. The series leverages silicon dioxide insulation layers to achieve high reliability and low skew compared to traditional optocouplers.

Replacement Considerations

The ADUM131D1BRWZ serves as a tube-packaged alternative within the same functional family. Verify pinout compatibility and insulation voltage ratings before substitution. Ensure the replacement variant meets the specific 3000 Vrms requirement if applicable.