REF02BUG4

Overview

The REF02BUG4 is a precision voltage reference from the REF02 series by Texas Instruments. It provides a fixed 5 V output with an initial accuracy of ±0.2%. The device operates within a wide supply range up to 40 V and draws a typical quiescent current of 1 mA. It features a temperature coefficient of 15 ppm/°C and supports a maximum shunt current of 8 mA. Designed for surface-mount applications, it is housed in an SOIC-8 package and functions reliably across an industrial temperature range of -40°C to +85°C.

Feature Summary

• Provides a stable 5 V reference output with high initial accuracy
• Operates over a wide input supply voltage range up to 40 V
• Features low temperature drift for consistent performance across varying thermal conditions

Applications

• Precision analog-to-digital converter (ADC) reference sources
• Digital-to-analog converter (DAC) excitation circuits
• High-accuracy data acquisition systems requiring stable voltage references

Procurement Notes

Verify the specific suffix 'BU' against the official Texas Instruments datasheet to confirm package type and temperature grade. Ensure compatibility with existing PCB footprints for the SOIC-8 package. Check for end-of-life status or alternative recommendations if the component is discontinued. Confirm RoHS compliance requirements match your manufacturing standards before finalizing procurement.

Selection Notes

Select this component when a fixed 5 V reference with ±0.2% initial accuracy is required. It is suitable for designs needing operation up to 40 V input voltage. Consider the 15 ppm/°C temperature coefficient for thermal stability needs. The SOIC-8 surface-mount package facilitates automated assembly. Verify that the 1 mA quiescent current fits the power budget constraints of the application.

Part Context

The REF02 series represents a family of precision voltage references known for high accuracy and stability. The REF02BUG4 specifically denotes the 5 V version in a surface-mount SOIC-8 package. This series is widely used in industrial instrumentation and measurement equipment where reliable voltage referencing is critical for signal integrity and conversion accuracy.

Replacement Considerations

Consult the TI replacement matrix for direct equivalents. Verify pinout compatibility and electrical specifications such as accuracy and temperature coefficient before substituting.