ADUM221N0WBRWZ-RL

Overview

The ADUM221N0WBRWZ-RL is a robust dual-channel digital isolator from Analog Devices, utilizing magnetic coupling technology for signal transmission. It features two forward channels and zero reverse channels, providing unidirectional data isolation. The device supports data rates up to 150 Mb/s with a typical propagation delay of 7.2 ns. It operates on a supply voltage range of 1.7 V to 5.5 V and draws a working supply current of 5.9 mA. The isolator offers an insulation voltage of 5000 Vrms and maintains a creepage distance of 7.8 mm. It is housed in a 16-pin SOIC package and functions within a temperature range of -40°C to +125°C.

Feature Summary

• Provides galvanic isolation between circuits using proprietary magnetic coupling technology.
• Features a dual-channel configuration with unidirectional signal flow for noise immunity.
• Designed for high-speed digital communication with low propagation delay characteristics.

Applications

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

Procurement Notes

Verify the specific suffix WBRWZ-RL to confirm the reel packaging format and tape width. Ensure compatibility with existing PCB footprints for the SOIC-16 package. Check for moisture sensitivity level requirements during storage and handling. Confirm that the 5.5 V maximum supply voltage aligns with the target system logic levels. Validate that the 7.8 mm creepage distance meets the safety standards for the intended application environment.

Selection Notes

Select this component when bidirectional communication is not required, as it lacks reverse channels. Consider the 150 Mb/s data rate limit against the system's clock speed requirements. Evaluate the 5.9 mA supply current against power budget constraints compared to capacitive isolators. Ensure the 5000 Vrms insulation rating satisfies the isolation voltage specifications of the design. Verify that the SOIC-16 package fits within the available board space constraints.

Part Context

This part belongs to the ADUM221N series of digital isolators, which are designed for robust performance in noisy environments. The series utilizes Analog Devices' iCoupler technology to provide isolation without the need for external transformers or optocouplers. These devices are engineered to replace traditional optocouplers while offering superior reliability and lower power consumption.

Replacement Considerations

Public confirmed substitute part numbers: ADUM221N1BRWZ-RL (adds one reverse channel), ADUM221N0BRIZ-RL (different packaging variant).