ADUM142D1BRQZ-RL7

Digital Isolators Overview

The ADUM142D1BRQZ-RL7 is a quad-channel digital isolator from Analog Devices, utilizing iCoupler magnetic coupling technology. It features a 2:2 channel configuration with unidirectional signal flow. The device operates within a supply voltage range of 1.7 V to 5.5 V and supports data rates up to 150 Mb/s. Key electrical parameters include an isolation voltage of 3000 Vrms, a propagation delay of 15 ns, and a common mode transient immunity of 75 kV/µs. It functions across an extended temperature range of -40°C to +125°C and is housed in a 16-pin QSOP package.

Digital Isolators Feature Summary

• Integrates four independent digital channels using monolithic air-core transformer technology for robust signal isolation.
• Provides high common-mode transient immunity to ensure reliable operation in electrically noisy environments.
• Supports wide operating voltage ranges and extended industrial temperature specifications for diverse application needs.

Digital Isolators Applications

• Industrial automation systems requiring galvanic isolation between control logic and field devices
• Medical equipment interfaces needing certified safety isolation for patient-connected circuits
• Power electronics gate drive circuits for isolated switching control
• Data acquisition systems isolating analog-to-digital converter inputs from high-voltage sources

Digital Isolators Procurement Notes

Verify the specific suffix 'RL7' corresponds to the required tape-and-reel packaging format for automated assembly processes. Confirm that the QSOP-16 package dimensions align with the target PCB footprint and soldering profile requirements. Ensure compliance with RoHS directives and check for any regional distribution restrictions or limited availability notices associated with this specific part number variant.

Digital Isolators Selection Notes

Select this component when a quad-channel, unidirectional isolator with 2:2 topology is required. It is suitable for applications demanding 3000 Vrms isolation and 150 Mb/s data throughput. Consider the 15 ns propagation delay and 12 mA typical supply current against system power budgets. This part is appropriate for designs needing extended temperature stability and high common-mode noise rejection capabilities.

Digital Isolators Part Context

This device belongs to the ADuM140-42 series of digital isolators. It shares the iCoupler architecture with other members like the ADUM140E and ADUM142E variants. Differences typically involve channel configuration (4:0 vs 2:2) and specific insulation ratings. The ADUM142D1BRQZ-RL7 specifically addresses the need for bidirectional isolation capability split across two input and two output sides within a single package.

Digital Isolators Replacement Considerations

The ADUM142D0BRQZ-RL7 is listed as a parameter-equivalent alternative. Verify if the '0' suffix indicates a different channel configuration or insulation rating compared to the '1' suffix before substitution. Cross-reference datasheet updates to ensure functional compatibility regarding pinout and electrical characteristics.