ADUM1441ARQZ-RL7

Digital Isolators Overview

The ADUM1441ARQZ-RL7 is a micro-power quad-channel digital isolator utilizing Analog Devices iCoupler technology. It provides bidirectional data transmission with a data rate of 2 Mb/s and a common-mode transient immunity of 25 kV/µs. The device operates on a single power supply ranging from 2.25 V to 3.6 V DC. It features magnetic coupling isolation with a rated insulation voltage of 2500 Vrms. The component is housed in a 16-pin SSOP package (0.154 inch width) and supports surface mount installation. Operating temperatures range from -40°C to +125°C, with typical supply currents around 552 µA to 672 µA.

Digital Isolators Feature Summary

• Integrates four independent bidirectional channels for simultaneous signal isolation
• Employs iCoupler magnetic coupling technology to eliminate transformer limitations
• Provides high common-mode transient immunity for noise-resistant communication
• Operates within a low-voltage single-supply range suitable for portable systems

Digital Isolators Applications

• Industrial automation control systems requiring galvanic isolation
• Medical equipment needing safety-certified signal separation
• Power electronics monitoring circuits with high voltage differences
• Automotive sensor interfaces demanding robust electromagnetic compatibility

Digital Isolators Procurement Notes

Verify the specific suffix RL7 indicates reel packaging when ordering. Confirm the 16-SSOP package dimensions match your PCB footprint requirements. Ensure the 2.25 V to 3.6 V supply range aligns with your system voltage rails. Check for RoHS compliance documentation if required by your manufacturing standards. Validate that the 2500 Vrms isolation rating meets your application's safety regulations.

Digital Isolators Selection Notes

Choose this component when four isolated channels are necessary within a compact footprint. The iCoupler technology offers superior performance compared to optical isolators in terms of speed and longevity. Consider the low power consumption for battery-operated applications. Verify that the 2 Mb/s data rate suffices for your communication protocol. Ensure the operating temperature range covers your environmental conditions.

Digital Isolators Part Context

This part belongs to the ADuM144x family of micro-power quad-channel digital isolators. These devices are designed to replace traditional optocouplers in various interface applications. The family shares similar architectural benefits but may vary in channel count or specific electrical characteristics. The ADUM1441ARQZ-RL7 specifically targets applications requiring four isolated bidirectional paths.

Digital Isolators Replacement Considerations

Direct substitutes include other members of the ADuM144x series such as ADUM1440 or ADUM1442, provided pin compatibility and channel requirements match. Verify that any replacement maintains the same 2500 Vrms isolation rating and 2 Mb/s data rate. Ensure the alternative device supports the same 16-SSOP package for board-level interchangeability.