ADUM1446ARSZ

Digital Isolators Overview

The ADUM1446ARSZ is a micro-power, quad-channel digital isolator utilizing Analog Devices iCoupler technology. It operates on a single supply voltage ranging from 2.25 V to 3.6 V, with typical operation at 3.3 V. The device supports bidirectional communication with a data rate of up to 2 Mb/s (NRZ). It features an isolation voltage of 2500 Vrms and a common-mode transient immunity of 25 kV/µs. Propagation delay is typically 80 ns. The component is housed in a 20-lead SSOP package and functions within a temperature range of -40°C to +125°C.

Digital Isolators Feature Summary

• Integrates four independent channels for high-density signal isolation using magnetic coupling technology.
• Supports bidirectional data transmission without requiring external direction control signals.
• Delivers ultralow power consumption suitable for battery-operated or energy-constrained applications.
• Provides robust galvanic isolation with high common-mode transient immunity.

Digital Isolators Applications

• Industrial automation systems requiring isolated sensor interfaces
• Medical equipment needing patient isolation barriers
• Power metering circuits with isolated communication links
• Automotive electronics demanding reliable signal isolation

Digital Isolators Procurement Notes

Verify the specific suffix ARSZ confirms the 20-lead SSOP package and tube packaging format. Confirm RoHS compliance status and moisture sensitivity level requirements for your assembly process. Check current availability as distribution may be limited. Ensure the operating voltage range matches your system design constraints before ordering.

Digital Isolators Selection Notes

Select this component when four isolated channels are required in a compact footprint. It is appropriate for designs prioritizing low power consumption over high-speed data rates exceeding 2 Mb/s. Consider the 20-lead SSOP package if board space allows for larger surface-mount components. Verify that the 2500 Vrms isolation rating meets your safety standards.

Digital Isolators Part Context

This part belongs to the ADuM144x series of digital isolators from Analog Devices. These devices leverage proprietary iCoupler technology to integrate transformer-based isolation on-chip. The series offers various channel configurations and speed options. The ADUM1446ARSZ specifically provides a quad-channel solution optimized for general-purpose isolation tasks.

Digital Isolators Replacement Considerations

The ADUM1446ARQZ serves as a pin-compatible alternative featuring a 16-lead QSOP package instead of the 20-lead SSOP. Both parts share identical electrical characteristics and functionality. Verify package dimensions and thermal performance differences when substituting.