ADUM140E1BRQZ

Overview

The ADUM140E1BRQZ is a quad-channel digital isolator utilizing Analog Devices iCoupler technology, which integrates high-speed CMOS circuitry with monolithic air-core transformer isolation. It provides four unidirectional data channels with a maximum data rate of 150 Mb/s and a common-mode transient immunity (CMTI) of 75 kV/µs. The device operates on supply voltages ranging from 1.7 V to 5.5 V and features a propagation delay of 15 ns. It offers 3000 Vrms isolation voltage and functions within an operating temperature range of -40°C to +125°C. Packaged in a 16-lead QSOP.

Feature Summary

• Integrates four unidirectional digital channels using magnetic coupling technology for robust signal transmission.
• Provides high common-mode transient immunity to ensure reliable operation in electrically noisy environments.
• Supports wide supply voltage ranges compatible with various logic families and lower voltage systems.

Applications

• Industrial automation control systems requiring galvanic isolation
• Medical equipment needing safe patient isolation barriers
• Power electronics monitoring and gate drive circuits

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm the specific suffix indicates the QSOP-16 package variant. Check current availability status as supply may be limited. Ensure compliance with RoHS directives and moisture sensitivity levels relevant to your assembly process before procurement.

Selection Notes

Select this component when four isolated bidirectional or unidirectional paths are required in a compact form factor. Consider the 150 Mb/s data rate limit and 3000 Vrms isolation rating against system requirements. Evaluate the 16-lead QSOP footprint for PCB layout constraints. Compare power consumption characteristics against alternative isolation technologies for efficiency optimization.

Part Context

This part belongs to the ADuM140E series of robust digital isolators from Analog Devices. The series leverages iCoupler technology to replace traditional optocouplers, offering superior performance in speed, size, and reliability. The E1 suffix typically denotes specific channel configurations within the broader family.

Replacement Considerations

Direct substitutes include other ADuM140x variants with similar pinouts and specifications. Verify channel count and directionality match exactly. Cross-reference package dimensions and thermal characteristics to ensure mechanical compatibility without redesigning the PCB footprint.