ADUM1280WARZ-RL7

Overview

The ADUM1280WARZ-RL7 is a dual-channel digital isolator from Analog Devices, utilizing magnetic coupling technology to provide electrical isolation. It features a bidirectional data flow capability with a maximum data rate of 100 Mb/s. The device operates within a supply voltage range of 3.135 V to 5.5 V and draws a typical operating current of 20 mA per channel. It offers an insulation voltage rating of 3000 Vrms and maintains a propagation delay of 35 ns. The component is housed in an SOIC-8 package and supports an extended industrial temperature range from -40°C to +125°C.

Feature Summary

• Bidirectional signal transmission for flexible circuit design
• High-speed data isolation up to 100 Mb/s
• Robust 3000 Vrms insulation barrier
• Low power consumption at 20 mA per channel

Applications

• Industrial process control systems
• Medical equipment signal isolation
• Power metering applications
• Inverter gate drive circuits

Procurement Notes

Verify the specific suffix 'W' indicates wide operating temperature range capabilities when sourcing. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Check for recent Process Change Notices (PCNs) that may affect pinout or material composition. Ensure the reel packaging matches your automated assembly requirements. Validate availability status as distribution channels may report limited stock.

Selection Notes

Select this component when bidirectional communication is required across an isolation barrier. Compare against unidirectional variants like the ADUM1280ARZ if directionality constraints exist. Evaluate power budgets against the 20 mA per channel consumption. Consider the 100 Mb/s speed limit relative to higher-speed alternatives in the ADUM120x series. Ensure the SOIC-8 footprint fits the PCB layout constraints.

Part Context

This part belongs to the ADUM1280 family of small, low-power digital isolators. It shares the same core architecture as the ADUM1280ARZ but differs in the temperature grade indicated by the 'W' suffix. The family utilizes capacitive or magnetic coupling technologies depending on the specific sub-series, with this model employing magnetic coupling for high reliability.

Replacement Considerations

The ADUM1280ARZ-RL7 is a direct functional substitute with standard temperature ratings. For bidirectional applications requiring lower power, consider the ADUM1281WARZ-RL7 which offers similar isolation but different current characteristics. Verify pin compatibility before swapping any alternative digital isolator.