REF02AUE4

Overview

The REF02AUE4 is a precision voltage reference from the Texas Instruments REF02 series, housed in an SOIC-8 surface-mount package. It provides a fixed output voltage of 5 V with an initial accuracy of ±0.2%. The device operates within a wide supply voltage range up to 40 V and supports a maximum shunt current of 8 mA. It functions reliably across an industrial temperature range from -40°C to +85°C, maintaining a low temperature coefficient of 15 ppm/°C. Quiescent current consumption is typically 1 mA, with a maximum specification of 1.4 mA.

Feature Summary

• Delivers high-precision 5 V output with tight initial accuracy tolerance
• Operates on a wide input supply voltage range extending up to 40 V
• Maintains stable performance over extended industrial temperature conditions

Applications

• Precision analog-to-digital converter (ADC) reference sources
• High-resolution digital-to-analog converter (DAC) excitation
• Calibration equipment requiring stable voltage standards

Procurement Notes

Verify component authenticity through authorized channels due to potential counterfeits. Confirm RoHS compliance status via official documentation before integration. Check for end-of-life notices as availability may be restricted. Ensure proper handling for moisture-sensitive devices during storage and reflow processes.

Selection Notes

Select this component when a fixed 5 V precision reference is required in a compact surface-mount form factor. Consider the 15 ppm/°C temperature coefficient for thermal stability needs. Evaluate the 8 mA load capability against system power requirements. Compare against other REF02 variants if different packaging or accuracy grades are preferred.

Part Context

The REF02AUE4 belongs to the broader REF02 family of precision voltage references manufactured by Texas Instruments. This series is designed for applications demanding high accuracy and long-term stability. The 'A' suffix typically denotes specific accuracy grades, while 'U' indicates the SOIC-8 package type. The 'E4' suffix often relates to lead-free and environmental compliance specifications.

Replacement Considerations

Direct substitutes include REF02AU and REF02BU for similar performance in alternative packages. Verify pin compatibility and electrical parameters before substitution. Consult official cross-reference guides for guaranteed functional equivalence.