ADUM1445ARSZ

Digital Isolators Overview

The ADUM1445ARSZ is a micro-power, quad-channel digital isolator manufactured by Analog Devices Inc. It utilizes iCoupler technology for magnetic coupling isolation. The device operates on a single power supply ranging from 2.25 V to 3.6 V and supports data rates up to 2 Mb/s. It provides an isolation voltage of 2500 Vrms with a common-mode transient immunity of 25 kV/µs. The component is housed in a 20-SSOP package and functions within a temperature range of -40°C to +125°C.

Digital Isolators Feature Summary

• Integrates four independent bidirectional channels using proprietary iCoupler magnetic coupling technology
• Provides robust galvanic isolation with high common-mode transient immunity for noisy environments
• Operates efficiently on a single low-voltage power supply suitable for battery-powered applications

Digital Isolators Applications

• Isolating digital communication buses such as SPI, I2C, and UART
• Protecting ground loops in industrial automation control systems
• Signal isolation in medical equipment and instrumentation

Digital Isolators Procurement Notes

Verify the specific suffix ARSZ corresponds to the 20-SSOP package variant when sourcing. Confirm that the required isolation voltage rating of 2500 Vrms meets system safety standards. Check current availability status as distribution may vary by region. Ensure the operating temperature range aligns with the intended environmental conditions.

Digital Isolators Selection Notes

Select this component when four isolated channels are required within a compact footprint. It is suitable for designs needing low power consumption during active transmission. Consider the 20-SSOP package constraints for PCB layout. Verify compatibility with the target logic voltage levels supported by the 2.25 V to 3.6 V supply range.

Digital Isolators Part Context

This part belongs to the ADuM144x family of digital isolators from Analog Devices. These devices replace traditional optocouplers by offering higher speed, lower power, and better reliability. The family includes variants with different channel counts and pin configurations to suit various interface requirements.

Digital Isolators Replacement Considerations

Direct substitutes include other ADuM144x series parts like ADUM1440 or ADUM1442 if channel count differs. Cross-brand alternatives require matching isolation voltage, data rate, and package dimensions.