REF02HQ

Overview

The REF02HQ is a precision series voltage reference from Analog Devices Inc., providing a stable +5V output. It features an initial accuracy of ±0.5% and operates within the industrial temperature range of -55°C to +125°C. The device utilizes a TO-5 metal can package for through-hole mounting. Key electrical specifications include a noise level of 15µVp-p in the 0.1Hz to 10Hz frequency band. It is designed for applications requiring high stability and low drift.

Feature Summary

• Provides a stable +5V output with adjustable range capability
• High precision with ±0.5% initial accuracy
• Low noise performance suitable for sensitive measurements
• Industrial temperature range operation

Applications

• Precision measurement systems
• Data acquisition circuits
• Instrumentation amplifiers
• Power supply monitoring

Procurement Notes

Verify the specific suffix 'HQ' against official Analog Devices documentation to confirm package type, temperature grade, and availability status. Ensure compatibility with existing PCB footprints for TO-5 packages. Check for obsolescence notices or lifecycle changes before finalizing procurement plans.

Selection Notes

Select this component when a fixed 5V reference with high accuracy is required. Consider the TO-5 package constraints for board layout. Evaluate if the specified noise and temperature stability meet system requirements compared to modern alternatives.

Part Context

Part of the REF02 family of precision voltage references. Designed to offer improved stability and accuracy over standard references. Commonly used in legacy and high-reliability analog circuits where long-term stability is critical.

Replacement Considerations

Check for direct pin-compatible substitutes within the AD58x or ADR series. Verify that replacement devices match the 5V output, TO-5 package, and temperature range specifications.