ADUM240D0BRWZ-RL

Overview

The ADUM240D0BRWZ-RL is a quad-channel digital isolator from Analog Devices, utilizing iCoupler magnetic coupling technology. It features four unidirectional channels with zero reverse channels, operating at data rates up to 150 Mb/s. The device provides 5000 Vrms isolation voltage and exhibits a common mode transient immunity of 75 kV/µs. Electrical characteristics include a propagation delay of 7.2 ns and a typical supply current of 11.8 mA. It functions within an industrial temperature range of -40°C to +125°C and is housed in a 16-pin SOIC package.

Feature Summary

• Implements iCoupler magnetic coupling technology for robust signal isolation without optical components.
• Provides high common mode transient immunity to maintain signal integrity in noisy environments.
• Offers compact integration of four independent unidirectional channels in a single package.

Applications

• Industrial automation systems requiring galvanic isolation between control and power stages.
• Medical equipment needing reliable signal transmission across safety barriers.
• Power metering applications involving high-voltage sensing and data acquisition.

Procurement Notes

Verify the specific suffix '0B' against official Analog Devices documentation to confirm pinout and functional configuration, as ordering suffixes may indicate specific manufacturing revisions or packaging variations. Confirm availability status directly with authorized distributors, as this part number is noted for restricted availability. Ensure compliance with RoHS directives by checking the detailed certification documents provided by the manufacturer before finalizing procurement decisions.

Selection Notes

Select this component when four isolated bidirectional or unidirectional data paths are required within a single footprint. The 150 Mb/s data rate suits moderate-speed communication protocols such as SPI, I2C, or UART. Consider the 5000 Vrms isolation rating for applications demanding significant potential difference between circuits. Evaluate the 16-SOIC package dimensions against PCB space constraints and thermal management requirements for the target environment.

Part Context

This device belongs to the ADuM240D series of quad-channel digital isolators. It shares the core iCoupler architecture with variants like ADUM240E, differing primarily in performance grades and testing specifications. The series represents a shift from traditional transformer-based isolation to integrated chip-scale magnetic coupling, offering improved reliability and smaller form factors compared to older optocoupler technologies.

Replacement Considerations

Direct substitutes within the same family include ADUM240D, ADUM240E, ADUM241D, ADUM241E, ADUM242D, and ADUM242E. Verify that the replacement variant matches the required isolation voltage, data rate, and channel configuration. Cross-reference the specific ordering suffix to ensure compatibility with existing board layouts and firmware expectations.