ADUM1442ARSZ

Digital Isolators Overview

The ADUM1442ARSZ 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 a typical operating current of 612 uA. The device provides bidirectional communication at data rates up to 2 Mb/s (NRZ) and features a propagation delay of 180 ns. It offers an isolation voltage of 2500 Vrms and a common-mode transient immunity of 25 kV/µs. Housed in a 20-lead SSOP package, it supports an operating temperature range from -40°C to +125°C.

Digital Isolators Feature Summary

• Integrates four independent channels for high-density signal isolation using magnetic coupling technology.
• Provides bidirectional data transmission capability within a compact surface-mount package.
• Delivers robust performance in noisy environments through high common-mode transient immunity.

Digital Isolators Applications

• Industrial automation systems requiring galvanic isolation
• Medical equipment needing safe patient isolation
• Power metering applications

Digital Isolators Procurement Notes

Verify the specific suffix ARSZ corresponds to the 20-lead SSOP package configuration. Confirm RoHS compliance status and moisture sensitivity level requirements against project specifications. Ensure the supplier documentation matches the Analog Devices part number exactly to avoid counterfeit components.

Digital Isolators Selection Notes

Select this component when four isolated channels are required in a small footprint. Compare power consumption against other iCoupler variants if battery life is critical. Verify that the 2 Mbps data rate meets system timing requirements and that the 2500 Vrms isolation rating satisfies safety standards.

Digital Isolators Part Context

This part belongs to the ADuM144x series of micro-power digital isolators. It shares architectural similarities with models like ADUM1440 and ADUM1441 but differs in channel configuration and package options. The series leverages silicon dioxide insulation for reliable long-term operation.

Digital Isolators Replacement Considerations

Check ADUM1440ARQZ or ADUM1441ARQZ for alternative pinouts or package styles within the same family. Verify functional equivalence regarding channel count and isolation ratings before substitution.

Digital Isolators FAQ

What is the maximum data rate supported by the ADUM1442ARSZ?

The device supports non-return-to-zero (NRZ) data rates up to 2 Mbps.

Does the ADUM1442ARSZ support bidirectional communication?

Yes, all four channels provide bidirectional signal isolation capabilities.