ADUM6400CRIZ-RL

Overview

The ADUM6400CRIZ-RL is a four-channel digital isolator from Analog Devices, utilizing magnetic coupling technology for signal transmission. It features an integrated isoPower DC/DC converter providing a regulated 3.3 V or 5 V output with up to 400 mW power capability. The device supports unidirectional data rates up to 25 Mbps with Schmitt trigger inputs. It operates within a supply voltage range of 3 V to 5.5 V and offers an insulation voltage of 5000 Vrms. The component is housed in a 16-pin SOIC package and functions reliably across a temperature range of -40°C to +105°C.

Feature Summary

• Integrates a high-efficiency isoPower DC/DC converter to provide isolated power alongside signal isolation.
• Employs capacitive isolation architecture to ensure robust signal integrity and high common-mode transient immunity.
• Features Schmitt trigger inputs on all channels to filter noise and ensure clean logic transitions.

Applications

• Industrial automation systems requiring galvanic isolation between control and power stages.
• Medical equipment interfaces needing reinforced insulation for patient safety compliance.
• Automotive electronics applications involving battery management and sensor interfacing.

Procurement Notes

Verify the specific suffix (CRIZ) against the manufacturer's current datasheet to confirm pinout and packaging details. Ensure the intended application voltage aligns with the 3 V to 5.5 V operating range. Confirm thermal management requirements for the SOIC-16 package under maximum load conditions. Check for any recent product change notices that may affect long-term availability or specifications.

Selection Notes

Select this component when both signal isolation and isolated power delivery are required in a single package. It is suitable for designs prioritizing board space reduction by eliminating external isolated DC/DC converters. Consider the 25 Mbps data rate limit for high-speed communication needs. Evaluate the 5000 Vrms insulation rating against system safety standards.

Part Context

This part belongs to the ADUM6400 series of digital isolators. It shares the same core isolation technology as other members but is distinguished by its four-channel configuration and integrated power supply. The CRIZ suffix indicates a specific tape-and-reel packaging option for automated assembly processes.

Replacement Considerations

Direct replacements include other ADUM6400 variants with different suffixes for package or temperature variations. Cross-family alternatives like the ADuM4122 series offer similar isolation but lack the integrated power converter. Verify pin compatibility before substituting with non-Analog Devices components.