ADUM131E1BRZ-RL7

Overview

The ADUM131E1BRZ-RL7 is a general-purpose digital isolator from Analog Devices, featuring three unidirectional channels in a 16-SOIC package. It utilizes magnetic coupling technology to provide galvanic isolation with a rated insulation voltage of 3000 Vrms and a common-mode transient immunity of 75 kV/µs. The device supports data rates up to 150 Mb/s with a typical propagation delay of 7.2 ns. Operating on a supply voltage range of 1.8 V to 5 V, it draws 8.8 mA of quiescent current. It functions reliably within an extended temperature range of -40°C to +125°C.

Feature Summary

• Provides robust galvanic isolation between circuits operating at different potential levels using magnetic coupling technology.
• Features high common-mode transient immunity to maintain signal integrity in noisy environments.
• Supports unidirectional data transmission across three independent channels for efficient system integration.

Applications

• General-purpose digital isolation in industrial communication interfaces
• Isolating microcontrollers from peripheral devices in embedded systems
• Protecting sensitive control circuitry in automotive electronic modules

Procurement Notes

Verify the specific suffix RL7 indicates reel packaging when sourcing. Confirm the E1 variant designation matches the required channel configuration and isolation specifications against the official datasheet. Ensure compatibility with the target PCB footprint and thermal management requirements before finalizing procurement orders.

Selection Notes

Select this component when three unidirectional isolated channels are required within a compact SOIC-16 footprint. It is suitable for applications demanding high common-mode transient immunity and operation over a wide temperature range. Consider power consumption and supply voltage constraints relative to the host system design.

Part Context

This part belongs to the ADUM131E series of digital isolators by Analog Devices. It is designed as a cost-effective solution for replacing traditional optocouplers in modern digital interfaces. The series emphasizes reliability and performance in harsh electrical environments while maintaining small form factors.

Replacement Considerations

Check for direct pin-compatible alternatives within the ADUM family that offer similar channel counts and isolation ratings. Verify if updated revisions or alternative packaging options are available from the manufacturer for long-term supply stability.

FAQ

What is the maximum common-mode transient immunity of the ADUM131E1BRZ-RL7?

The device provides a common-mode transient immunity of 75 kV/µs.

Does the ADUM131E1BRZ-RL7 support bidirectional communication?

No, this specific model features three unidirectional channels only.