ADUM142D0BRQZ-RL7

Digital Isolators Overview

The ADUM142D0BRQZ-RL7 is a quad-channel digital isolator manufactured by Analog Devices Inc. It utilizes iCoupler magnetic coupling technology to provide robust signal isolation with a rated isolation voltage of 3000 Vrms and a minimum common-mode transient immunity of 75 kV/µs. The device supports unidirectional data transmission at a maximum data rate of 150 Mbps. It operates on supply voltages ranging from 1.7 V to 5.5 V for both sides, with a typical operating supply current of 11 mA. The component is housed in a 16-pin QSOP package and is designed for operation within an ambient temperature range of -40°C to +125°C.

Digital Isolators Feature Summary

• Integrates four independent channels for high-density signal isolation using proprietary iCoupler magnetic coupling technology.
• Provides robust protection against high-voltage transients with a 3000 Vrms isolation rating and 75 kV/µs common-mode transient immunity.
• Supports high-speed data transmission up to 150 Mbps with low propagation delay characteristics.
• Operates across a wide supply voltage range of 1.7 V to 5.5 V, ensuring compatibility with various logic families.

Digital Isolators Applications

• Industrial automation systems requiring galvanic isolation between microcontrollers and peripheral sensors.
• Medical equipment interfaces needing reliable signal separation for patient safety compliance.
• Automotive electronics applications utilizing isolated communication buses such as CAN or LIN.
• Power monitoring circuits where high-voltage side data must be safely transferred to low-voltage control logic.

Digital Isolators Procurement Notes

Verify the specific suffix RL7 indicates tape-and-reel packaging when ordering. Confirm that the QSOP-16 package dimensions match your PCB footprint requirements. Ensure the design accounts for the 1.7 V to 5.5 V supply range on both input and output sides. Check for any applicable automotive qualification standards if deploying in vehicle environments. Validate thermal management needs given the operating temperature range extends to 125°C.

Digital Isolators Selection Notes

Select this component when four isolated channels are required in a compact surface-mount package. Consider the 150 Mbps data rate limit for high-speed interface compatibility. Evaluate the 3000 Vrms isolation barrier against system voltage stress requirements. Compare power consumption metrics against other isolators if battery life is critical. Ensure the unidirectional channel configuration aligns with the signal flow direction of the application circuit.

Digital Isolators Part Context

This part belongs to the ADuM142 family of digital isolators from Analog Devices. These devices replace traditional optocouplers by offering superior performance in speed, power consumption, and reliability. The iCoupler technology integrates transformer windings onto silicon, reducing size and increasing consistency compared to discrete magnetic components. This series is widely used in industrial and automotive sectors for robust signal integrity.

Digital Isolators Replacement Considerations

The ADUM142E1WBRQZ is documented as a parameter-equivalent alternative. Verify pinout compatibility and package differences between QSOP and SSOP variants before substitution. Ensure the replacement meets the same 3000 Vrms isolation and 150 Mbps data rate specifications.