ADUM3440CRWZ-RL

Overview

The ADUM3440CRWZ-RL is a quad-channel high-speed digital isolator manufactured by Analog Devices Inc. It utilizes magnetic coupling technology to provide electrical isolation between circuits. The device operates within a supply voltage range of 3 V to 5.5 V and supports data rates up to 150 Mb/s. Key electrical specifications include an insulation voltage of 2500 Vrms, a propagation delay of 32 ns, and a common-mode transient immunity of 25 kV/µs. The component features bidirectional signal transmission with rise and fall times of 3 ns. It is housed in a 16-pin SOIC package and is designed for operation across a temperature range of -40°C to +105°C.

Feature Summary

• Provides robust galvanic isolation using proprietary iCoupler magnetic coupling technology.
• Supports bidirectional data transmission across four independent channels.
• Delivers high common-mode transient immunity to maintain signal integrity in noisy environments.
• Integrates low-power CMOS design for efficient energy consumption.

Applications

• Industrial automation systems requiring isolated communication interfaces
• Medical equipment needing patient isolation barriers
• Power metering applications with high-voltage sensing requirements

Procurement Notes

Verify the specific suffix and packaging configuration against current official documentation, as availability may vary. Confirm that the component meets all required regulatory standards for your target market. Check for any recent lifecycle status updates from the manufacturer regarding obsolescence or replacement recommendations before finalizing procurement plans.

Selection Notes

Select this component when four isolated channels are required for high-speed digital communication. Ensure the application environment stays within the specified operating temperature range. Verify that the system voltage levels match the 3 V to 5.5 V supply requirement. Consider the SOIC-16 package dimensions for PCB layout compatibility.

Part Context

This part belongs to the ADUM3440 series of general-purpose digital isolators. It is designed to replace traditional optocouplers in many applications, offering superior performance in speed, power consumption, and reliability. The series is widely used in industrial and automotive sectors where reliable signal isolation is critical.

Replacement Considerations

Check for direct pin-compatible replacements within the same family if this specific reel version is unavailable. Consult official substitution guides for updated components with similar electrical characteristics and package footprints.

FAQ

What is the maximum data rate supported by this isolator?

The ADUM3440CRWZ-RL supports a maximum data rate of 150 Mb/s.

Does this component support bidirectional communication?

Yes, all four channels support bidirectional signal transmission.