ADUM1285CRZ-RL7

Overview

The ADUM1285CRZ-RL7 is a two-channel digital isolator from Analog Devices, utilizing magnetic coupling technology for galvanic isolation rated at 3000 Vrms. It supports unidirectional data transmission with a maximum data rate of 100 Mb/s and features default low output logic. The device operates within a supply voltage range of 3.135 V to 5.5 V, consuming typical power supply currents of 9.5 mA and 20 mA on the respective sides. Key timing parameters include a propagation delay of 23 ns, with rise and fall times of 3 ns each. It is housed in an SOIC-8 surface-mount package and is designed for operation across an industrial temperature range of -40°C to +125°C.

Feature Summary

• Provides galvanic isolation via magnetic coupling technology to ensure signal integrity and safety.
• Supports high-speed unidirectional data transmission up to 100 Mb/s.
• Features default low output logic configuration for defined state initialization.

Applications

• Industrial communication interfaces requiring high-speed isolation
• Medical equipment signal isolation
• Power management system monitoring

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status and check current availability as supply may be limited. Ensure the specific reel packaging matches design requirements. Validate that the SOIC-8 footprint aligns with PCB layout specifications before finalizing procurement decisions.

Selection Notes

Select this component when unidirectional isolation with 100 Mb/s speed is required. Compare against the ADUM1285BRZ variant if lower data rates and reduced power consumption are prioritized over speed. Ensure the 3000 Vrms isolation rating meets system safety standards. Verify that the SOIC-8 package dimensions fit the available board space constraints.

Part Context

This part belongs to the ADUM1285 series of digital isolators. It shares the same core architecture and pinout with variants like the ADUM1285BRZ and ADUM1285WCRZ-RL7. Differences primarily involve data rate capabilities and packaging formats. The series is designed for applications needing robust isolation between microcontrollers and peripheral devices.

Replacement Considerations

The ADUM1285BRZ serves as a functional alternative with lower data rates (25 Mb/s) and reduced power consumption. The ADUM1285WCRZ-RL7 offers similar functionality in a wider body package. Verify pin compatibility and electrical specifications before substitution.