ADUM231D1BRWZ

Overview

The ADUM231D1BRWZ is a robust digital isolator IC featuring three independent channels with a 2:1 input-to-output configuration. It operates at data rates up to 150 Mb/s and provides an isolation voltage of 5000 Vrms using magnetic coupling technology. The device supports unidirectional signal transmission with a propagation delay of 7.2 ns and dynamic power consumption characteristics suitable for low-power applications. It functions within a supply voltage range of 1.8 V to 5 V, enabling level translation capabilities. The component is housed in a 16-lead SOIC package and is rated for operation between -40°C and +125°C.

Feature Summary

• Utilizes iCoupler magnetic coupling technology for high-reliability signal isolation without optical components.
• Provides fail-safe output options that default to a high or low state during power loss or fault conditions.
• Supports wide operating temperature ranges up to 125°C for demanding industrial environments.
• Enables direct level translation between different voltage domains from 1.8 V to 5 V.

Applications

• Industrial automation systems requiring galvanic isolation for sensor interfaces
• Medical equipment needing reliable signal separation for patient safety compliance
• Power electronics control circuits involving high-voltage switching management

Procurement Notes

Verify the specific suffix 'WZ' indicates the wider SOIC package variant when sourcing replacements. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure design compatibility with the 16-lead footprint dimensions. Check for any recent product change notices affecting pinout or electrical specifications. Validate supply chain authenticity through authorized Analog Devices distributors.

Selection Notes

Choose this component when high common-mode transient immunity is required alongside low power consumption. The 2:1 channel architecture suits applications where multiple inputs drive fewer outputs across isolated boundaries. Consider the 75 kV/µs CMTI rating for noisy environments with rapid voltage transitions. Evaluate the 150 Mb/s speed limit against system timing requirements before finalizing selection.

Part Context

This part belongs to the ADUM231 family of general-purpose digital isolators from Analog Devices. The series emphasizes robust performance in electrically noisy environments using proprietary iCoupler technology. Variants within the family differ primarily by channel count, polarity direction, and packaging style. The ADUM231D1BRWZ specifically offers the 2:1 configuration in a wide-body SOIC package.

Replacement Considerations

Cross-reference with ADUM231E0BRIZ-RL for similar magnetic coupling isolation characteristics. Verify pinout compatibility and thermal performance metrics before substituting. Ensure the alternative part meets the same 5000 Vrms isolation voltage requirement.