ADUM1445ARQZ-RL7

Digital Isolators Overview

The ADUM1445ARQZ-RL7 is a micro-power quad-channel digital isolator from Analog Devices, utilizing iCoupler magnetic coupling technology. It provides 2500Vrms isolation with a common-mode transient immunity of 25kV/µs. The device supports data rates up to 2Mbps and features propagation delays of 80ns typical. Operating supply voltage ranges from 2.25V to 3.6V. It is housed in a 16-QSOP package and operates within a temperature range of -40°C to +125°C.

Digital Isolators Feature Summary

• Integrates four independent channels for bidirectional signal transmission using proprietary magnetic coupling.
• Provides robust galvanic isolation with high common-mode transient immunity for noisy environments.
• Operates on low power supply voltages suitable for energy-efficient system designs.

Digital Isolators Applications

• Industrial process control systems requiring isolated communication interfaces
• Medical equipment needing safety-certified signal isolation
• Power management circuits involving isolated gate drive signals

Digital Isolators Procurement Notes

Verify the specific suffix RL7 indicates reel packaging when sourcing components. Confirm that the part number matches the exact channel configuration and isolation voltage requirements for your design. Ensure compatibility with standard surface-mount assembly processes for the QSOP package.

Digital Isolators Selection Notes

Select this component when four isolated channels are required within a single footprint. Consider the 2Mbps data rate limit and 80ns propagation delay for timing-sensitive applications. Evaluate the 2500Vrms isolation barrier against system safety standards.

Digital Isolators Part Context

This part belongs to the ADuM144x series of micro-power digital isolators. It shares the iCoupler architecture with variants like the ADUM1442 but differs in channel directionality and specific electrical characteristics. It serves as a compact solution for replacing traditional optocouplers in space-constrained designs.

Digital Isolators Replacement Considerations

Direct substitutes include other ADUM144x series parts such as the ADUM1442 or ADUM1441, provided pinout and functional directionality match the application requirements. Verify isolation ratings and package dimensions before swapping.