ADUM1440ARSZ

Digital Isolators Overview

The ADUM1440ARSZ is a micropower, four-channel digital isolator utilizing Analog Devices iCoupler technology. It operates within a supply voltage range of 2.25 V to 3.6 V and supports data rates up to 2 Mb/s. The device features a propagation delay of 80 ns and provides an isolation voltage of 2500 Vrms with a common-mode transient immunity of 25 kV/µs. It is housed in a 20-lead SSOP package and functions across a temperature range of -40°C to +125°C.

Digital Isolators Feature Summary

• Integrates four independent digital channels for bidirectional signal transmission using magnetic coupling technology.
• Provides high common-mode transient immunity to protect against noise in electrically noisy environments.
• Operates on low power consumption suitable for battery-powered or energy-constrained applications.

Digital Isolators Applications

• Industrial process control systems requiring galvanic isolation
• Medical equipment needing safety-certified signal isolation
• Power metering circuits for accurate measurement separation

Digital Isolators Procurement Notes

Verify the specific suffix ARSZ confirms the SSOP-20 package and tube packaging format. Ensure compatibility with the required operating temperature range of -40°C to +125°C. Confirm that the 2.25 V to 3.6 V supply voltage aligns with the target system design constraints before finalizing procurement.

Digital Isolators Selection Notes

Select this component when four isolated channels are required within a single compact footprint. It is appropriate for designs prioritizing low power consumption alongside high reliability. Consider the 20-lead SSOP package dimensions for PCB layout constraints. Verify that the 2 Mb/s data rate meets the communication speed requirements of the application.

Digital Isolators Part Context

This part belongs to the ADuM144x series of micropower digital isolators from Analog Devices. These devices leverage proprietary iCoupler technology to integrate transformer-based isolation onto CMOS silicon. The series offers various channel configurations and pinout options to accommodate diverse interface needs while maintaining small form factors.

Digital Isolators Replacement Considerations

The ADUM1441ARSZ serves as a direct functional substitute within the same family, offering identical specifications and pinouts. Both parts share the same iCoupler architecture and performance metrics, allowing for interchangeable use in existing designs without modification.

Digital Isolators FAQ

What is the maximum data rate supported by the ADUM1440ARSZ?

The device supports a maximum data rate of 2 Mb/s per channel.

Does the ADUM1440ARSZ support bidirectional communication?

Yes, all four channels are designed for bidirectional signal transmission.