ADUM231D1BRIZ

Overview

The ADUM231D1BRIZ is a robust digital isolator from Analog Devices, featuring three unidirectional channels with magnetic coupling technology. It provides an insulation voltage of 5000 Vrms and supports data rates up to 150 Mb/s. The device operates within a supply voltage range of 1.7 V to 5.5 V and draws a typical operating current of 8.8 mA. It exhibits a propagation delay of 7.2 ns and functions reliably across an extended temperature range from -40°C to +125°C. Packaged in a 16-pin SOIC format, it ensures high common-mode transient immunity for signal integrity.

Feature Summary

• Utilizes iCoupler magnetic coupling technology for galvanic isolation without transformers or optocouplers.
• Provides robust 5000 Vrms insulation capability for safe signal transmission between isolated domains.
• Integrates three unidirectional channels to facilitate efficient multi-channel data transfer.
• Maintains signal integrity through high common-mode transient immunity characteristics.

Applications

• Industrial automation systems requiring isolated communication interfaces
• Medical equipment needing patient isolation barriers
• Power electronics control circuits with high-voltage noise environments

Procurement Notes

Verify the specific suffix and package variant against the official datasheet before ordering. Confirm availability status as distribution may vary by region. Ensure compatibility with existing PCB footprint and thermal management requirements. Check for moisture sensitivity level handling instructions during assembly. Validate that the selected component meets all regulatory compliance standards for the target application environment.

Selection Notes

Choose this component when three unidirectional isolated channels are required for digital signal transmission. Consider the 150 Mb/s data rate limit and 5000 Vrms isolation rating for system design constraints. Evaluate the 16-pin SOIC package dimensions for board space limitations. Assess power consumption needs relative to the 8.8 mA operating current specification. Ensure the operating temperature range aligns with the environmental conditions of the deployment site.

Part Context

This part belongs to the ADuM231 series of digital isolators designed for general-purpose applications. It replaces older optocoupler solutions by offering superior performance in speed, size, and reliability. The series is widely used in industrial and medical fields where electrical isolation is critical for safety and noise reduction.

Replacement Considerations

Check for direct pin-compatible alternatives within the same manufacturer's portfolio. Verify if newer revisions offer improved specifications or updated packaging options. Ensure any substitute maintains the same isolation voltage and channel configuration requirements.