REF02BUE4

Overview

The REF02BUE4 is a precision voltage reference from the Texas Instruments REF02 series, housed in an 8-pin SOIC package. It provides a fixed 5 V output with an initial accuracy of ±0.2%. The device operates over a wide supply range up to 40 V and features a temperature coefficient of 15 PPM/°C. It draws a typical operating current of 1 mA and supports a maximum shunt current of 8 mA. The component functions within a temperature range of -40°C to +85°C.

Feature Summary

• Provides a stable 5 V reference output with high initial accuracy
• Operates across a wide input supply voltage range
• Features low temperature drift for thermal stability
• Designed for surface-mount integration via SOIC-8 packaging

Applications

• Precision analog-to-digital converter (ADC) reference sources
• Digital-to-analog converter (DAC) voltage references
• High-accuracy instrumentation amplifier biasing
• Battery-powered measurement systems requiring low quiescent current

Procurement Notes

Verify the specific suffix 'UE4' against the manufacturer's latest datasheet to confirm pinout compatibility and RoHS status. Confirm that the SOIC-8 package matches your PCB footprint requirements. Check for any end-of-life notices or obsolescence warnings associated with this specific revision before finalizing procurement plans.

Selection Notes

Select this component when a fixed 5 V output is required with tight initial tolerance. Ensure the application can accommodate the 40 V maximum input voltage limit. Verify that the 15 PPM/°C temperature coefficient meets the system's long-term stability needs. Consider the SOIC-8 package constraints for thermal management and board space availability.

Part Context

The REF02BUE4 belongs to the REF02 family of wide-supply-range precision voltage references. This series is designed for applications demanding high accuracy and stability without the need for external trimming. The device integrates a bandgap reference core with output buffering to drive moderate loads while maintaining low noise and drift characteristics across the industrial temperature range.

Replacement Considerations

Consult official substitution guides for direct replacements. Generic equivalents may differ in temperature coefficient or initial accuracy.