ADUM140D1BRWZ

Overview

The ADUM140D1BRWZ is a quad-channel digital isolator utilizing Analog Devices iCoupler technology. It features four unidirectional channels with a maximum data rate of 150 Mbps and a propagation delay of 15 ns. The device provides an isolation voltage of 3750 Vrms and withstands common-mode transients up to 75 kV/µs. Operating on a supply voltage range of 1.7 V to 5.5 V, it consumes approximately 12 mA of quiescent current. The component is housed in a 16-lead SOIC wide body package and supports operation across an extended temperature range from -40°C to +125°C.

Feature Summary

• Integrates four independent unidirectional signal paths within a single package for compact system design.
• Employs monolithic air core transformer technology to achieve high-speed digital isolation without optical components.
• Provides robust immunity against high-frequency electrical noise through specified common-mode transient rejection capabilities.

Applications

• General-purpose multichannel isolation
• SPI interface and data converter isolation
• Industrial field bus isolation

Procurement Notes

Verify the specific suffix 'WZ' indicates the wide-body 16-SOIC package variant when sourcing replacements. Confirm that the required isolation rating meets or exceeds the 3750 Vrms specification for your safety standards. Ensure the operating temperature range aligns with the -40°C to +125°C limits defined in the official documentation. Cross-reference the manufacturer part number directly to avoid confusion with similar channel counts or package styles.

Selection Notes

Select this component when designing systems requiring four isolated bidirectional or unidirectional data lines with high speed. It is suitable for applications demanding superior common-mode transient immunity compared to traditional optocouplers. Consider the wide-body package dimensions if PCB space allows for enhanced creepage distances. Evaluate power consumption requirements as the device draws current proportional to the data rate.

Part Context

This device belongs to the ADuM140 series of quad-channel digital isolators. It shares architectural similarities with the ADUM1400 and ADUM1402 but differs in channel directionality and specific performance metrics. The series leverages CMOS and air core transformer technology to replace discrete isolation solutions.

Replacement Considerations

Public confirmed substitute part numbers include ADUM140D1BRZ and ADUM140D1BRQZ. Verify package compatibility and electrical parameter alignment before substitution.