ADUM1447ARSZ

Digital Isolators Overview

The ADUM1447ARSZ is a micropower, quad-channel digital isolator based on iCoupler technology. It features four independent isolation channels with bidirectional data transmission capability. The device operates within a supply voltage range of 2.25 V to 3.6 V and draws a typical operating current of 612 µA. It provides an insulation voltage of 2500 Vrms and supports data rates up to 2 Mb/s. The component exhibits a propagation delay of 80 ns and offers common-mode transient immunity of 25 kV/µs. It functions reliably across an extended temperature range from -40°C to +125°C.

Digital Isolators Feature Summary

• Integrates four independent bidirectional isolation channels for simultaneous signal transmission
• Utilizes iCoupler magnetic coupling technology to eliminate the need for external transformer drivers
• Provides high common-mode transient immunity to protect against noise in noisy environments
• Designed for low-power applications with micropower consumption characteristics

Digital Isolators Applications

• Industrial automation systems requiring isolated sensor interfaces
• Medical equipment needing galvanic isolation for patient safety
• Power metering circuits for accurate energy measurement
• Inverters and motor drives for control signal isolation

Digital Isolators Procurement Notes

Verify the specific suffix ARSZ corresponds to the SSOP-20 package variant when sourcing. Confirm that the bidirectional channel configuration matches the design requirements, as other variants may offer unidirectional options. Ensure the selected component meets the required insulation voltage ratings for the target application's safety standards. Cross-reference the datasheet revision date to ensure compatibility with latest manufacturing specifications.

Digital Isolators Selection Notes

Select this component when bidirectional communication is required across all four channels. Compare power consumption metrics against alternatives if battery life is critical, noting its micropower profile. Evaluate the 2500 Vrms insulation rating against system safety requirements. Consider the SSOP-20 package dimensions for PCB layout constraints. Verify that the 2 Mb/s data rate suffices for the intended communication speed.

Digital Isolators Part Context

This part belongs to the ADUM1447 series of micropower quad-channel digital isolators manufactured by Analog Devices Inc. The series leverages iCoupler technology to provide robust isolation solutions. The ARSZ suffix denotes the specific SSOP-20 surface-mount package variant. This family is designed for general-purpose isolation needs in industrial and commercial applications.

Digital Isolators Replacement Considerations

Check for ADUM1447ARSZ-RL7 for reel packaging equivalents. Verify functional compatibility with other ADUM14xx series parts if pinout or channel count differs.