ADUM1446ARQZ

Digital Isolators Overview

The ADUM1446ARQZ is a micropower, four-channel digital isolator utilizing Analog Devices iCoupler technology. It provides bidirectional communication with a data rate up to 2 Mbps and a common-mode transient immunity of 25 kV/µs. The device operates on a single supply voltage ranging from 2.25 V to 3.6 V, typically at 3.3 V. It features propagation delays of 80 ns and pulse width distortion of 8 ns. The isolation rating is 2500 Vrms. Operating temperatures range from -40°C to +125°C. It is housed in a 16-lead QSOP package.

Digital Isolators Feature Summary

• Integrates high-speed CMOS technology with monolithic air core transformer coils for signal transmission
• Provides galvanic isolation without the need for external transformer drive circuits
• Offers low power consumption suitable for battery-operated applications
• Ensures high reliability through solid-state construction and absence of moving parts

Digital Isolators Applications

• Industrial process control systems requiring isolated I/O channels
• Medical equipment needing patient isolation barriers
• Power management systems with isolated gate drive interfaces
• Communication interfaces such as RS-485 and CAN bus isolation

Digital Isolators Procurement Notes

Verify the specific suffix 'RQZ' corresponds to the 16-lead QSOP package configuration. Confirm RoHS compliance status matches current regulatory requirements. Check for any Product Change Notifications regarding packaging or material updates. Ensure the supplier provides valid traceability documentation for quality assurance purposes.

Digital Isolators Selection Notes

Select this component when four independent isolated channels are required within a compact footprint. Consider the 2 Mbps data rate limit for signal speed requirements. Evaluate the 2500 Vrms isolation voltage against system safety standards. Compare power consumption metrics if battery life is a critical design constraint.

Digital Isolators Part Context

This part belongs to the ADuM144x family of digital isolators. These devices replace traditional optocouplers by offering superior performance in terms of speed, power, and size. The family includes variants with different channel configurations and directionality options to suit various interface needs.

Digital Isolators Replacement Considerations

Direct substitutes include other members of the ADuM144x series such as ADUM1440, ADUM1441, ADUM1442, ADUM1445, and ADUM1447, provided pin compatibility and channel directionality match the application requirements.