ADUM2280CRIZ-RL

Overview

The ADUM2280CRIZ-RL is a dual-channel digital isolator from Analog Devices, utilizing magnetic coupling technology for signal transmission. It operates within a supply voltage range of 2.7 V to 5.5 V and supports bidirectional data flow at speeds up to 100 Mb/s. The device provides an insulation voltage of 5000 Vrms and features a propagation delay of 24 ns with rise and fall times of 3 ns. It functions reliably across an operating temperature range of -40°C to +125°C and is housed in a 16-pin SOIC package.

Feature Summary

• Integrates dual independent channels for simultaneous bidirectional signal isolation
• Employs on-chip high-frequency oscillators and CMOS core technology for reliable magnetic coupling
• Provides robust common-mode transient immunity to prevent false triggering during rapid voltage changes

Applications

• Industrial automation systems requiring isolated communication interfaces
• Medical equipment needing galvanic isolation for safety compliance
• Power electronics monitoring circuits demanding high-speed data transfer

Procurement Notes

Verify the complete part number including the suffix to ensure correct packaging configuration. Confirm that the specific revision matches your design requirements. Check current availability status as distribution may be limited. Ensure compatibility with your board layout constraints regarding the SOIC-16 footprint. Validate regulatory compliance certifications relevant to your target market before finalizing procurement.

Selection Notes

Choose this component when dual-channel isolation with high data rates is required. Consider the 100 Mb/s speed capability for applications exceeding standard UART or SPI limits. Evaluate the 5000 Vrms insulation rating against system safety standards. Assess the wide operating temperature range for harsh environment suitability. Compare power consumption metrics if battery operation is a constraint.

Part Context

This device belongs to the ADuM series of digital isolators, which replace traditional optocouplers by offering superior performance characteristics. The series utilizes proprietary iCoupler technology to integrate transformers onto a silicon substrate. This approach results in smaller form factors and lower power consumption compared to legacy optical solutions.

Replacement Considerations

Direct substitutes include other models within the ADUM228x family. Verify channel count and data rate specifications when selecting alternatives. Ensure pinout compatibility to minimize redesign efforts. Confirm that replacement parts meet the same insulation voltage and temperature requirements.