ADUM1447ARSZ-RL7

Digital Isolators Overview

The ADUM1447ARSZ-RL7 is a micro-power quad-channel digital isolator manufactured by Analog Devices Inc. It utilizes iCoupler magnetic coupling technology to provide electrical isolation between circuits. The device operates within a supply voltage range of 2.25 V to 3.6 V and features bidirectional data transmission at a maximum data rate of 2 Mb/s. Key electrical specifications include an insulation voltage of 2500 Vrms, a common-mode transient immunity (CMTI) of 25 kV/µs, and a typical propagation delay of 180 ns. The part is housed in a 20-lead SSOP package and supports operation across an industrial temperature range from -40°C to +125°C.

Digital Isolators Feature Summary

• Integrates four independent bidirectional channels for high-density signal isolation
• Employs on-chip miniaturized transformers for robust magnetic coupling isolation
• Provides high common-mode transient immunity to prevent false triggering in noisy environments

Digital Isolators Applications

• Industrial process control systems requiring galvanic isolation
• Medical equipment with safety isolation requirements
• Power metering and energy monitoring interfaces

Digital Isolators Procurement Notes

Verify the specific suffix RL7 indicates reel packaging when sourcing. Confirm current availability status as distribution may vary. Ensure the SSOP-20 footprint matches the target PCB layout constraints. Validate that the 2.25 V to 3.6 V supply range aligns with the system power architecture before finalizing procurement.

Digital Isolators Selection Notes

Select this component when four isolated bidirectional channels are required within a single package. The low power consumption makes it suitable for battery-operated or thermally constrained applications. Compare against other ADUM14xx variants if higher data rates or different channel counts are needed. Ensure the 2500 Vrms isolation rating meets the safety standards of the end application.

Digital Isolators Part Context

This part belongs to the ADUM1447 series of micro-power digital isolators. It is designed to replace bulky optocouplers in modern electronic designs. The series offers improved performance in terms of speed, power efficiency, and reliability compared to traditional isolation technologies.

Digital Isolators FAQ

What is the maximum data rate supported by the ADUM1447?

The ADUM1447 supports a maximum data rate of 2 Mb/s.

Does the ADUM1447 support bidirectional communication?

Yes, all four channels of the ADUM1447 are bidirectional.