ADUM4474CRIZ-RL

Overview

The ADUM4474CRIZ-RL is a quad-channel digital isolator from Analog Devices Inc., featuring an integrated isolated DC-to-DC converter. It provides 5000Vrms isolation voltage and supports data rates up to 25Mbps with a maximum propagation delay of 60ns. The device operates within a supply voltage range of 3V to 5.5V and functions across a temperature range of -40°C to +105°C. Packaged in a 20-SOIC housing, it utilizes magnetic coupling technology for signal transmission.

Feature Summary

• Integrates a regulated isolated DC-to-DC power supply to eliminate external transformer requirements
• Provides high common-mode transient immunity of 25kV/µs for reliable noise rejection
• Utilizes iCoupler magnetic coupling technology for compact, low-power signal isolation

Applications

• Isolated PWM control circuits
• Transistor driver interfaces
• Industrial communication gateways

Procurement Notes

Verify the specific suffix RL indicates reel packaging when ordering. Confirm the manufacturer part number matches ADUM4474CRIZ-RL exactly. Check datasheet revisions for any pinout or electrical parameter updates before finalizing design integration.

Selection Notes

Select this component when a single-chip solution for both signal isolation and isolated power generation is required. Ensure the 25Mbps data rate meets system timing requirements. Verify that the 20-SOIC package dimensions fit the available PCB space constraints.

Part Context

This part belongs to the ADuM447x family of quad-channel digital isolators. It shares architectural similarities with the ADUM4470 and ADUM4471 but is distinguished by its specific channel configuration and internal power regulator optimization for general-purpose isolation applications.

Replacement Considerations

ADUM4470CRIZ-RL is a parameter-equivalent substitute within the same family.