REF02BU/2K5

Overview

The REF02BU/2K5 is a precision series voltage reference from Texas Instruments, delivering a fixed 5 V output. It features an initial accuracy of 0.2% and a temperature coefficient of 15 PPM/C. The device operates within a wide supply voltage range up to 40 V and supports a maximum shunt current of 8 mA. It consumes 1 mA of operating power with a maximum supply current of 1.4 mA. Designed for surface mount installation, it is housed in an SOIC-8 package and functions reliably across a temperature range of -40°C to +85°C.

Feature Summary

• Provides stable 5 V reference output with high initial accuracy
• Operates over a wide input voltage range up to 40 V
• Low power consumption suitable for battery-powered applications
• Compact surface-mount packaging for space-constrained designs

Applications

• Precision analog-to-digital converter (ADC) reference sources
• Data acquisition systems requiring stable voltage references
• Industrial process control instrumentation
• Medical equipment signal conditioning circuits

Procurement Notes

Verify the specific suffix /2K5 indicates tape-and-reel packaging when ordering. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure moisture sensitivity level requirements are addressed during storage and handling procedures. Validate that the SOIC-8 footprint matches the target PCB layout specifications exactly.

Selection Notes

Select this component when a fixed 5 V output is required with 0.2% initial accuracy. Consider the 15 PPM/C temperature coefficient for thermal stability needs. Evaluate the 40 V maximum input voltage against system supply rails. Compare power consumption characteristics against alternative references if low quiescent current is critical for the application design.

Part Context

This part belongs to the REF02 series of precision voltage references manufactured by Texas Instruments. The series offers various accuracy grades and output voltages. The REF02BU variant specifically provides 5 V output with 0.2% accuracy. The /2K5 suffix denotes reel packaging configuration for automated assembly processes.

Replacement Considerations

REF02AU/2K5 offers similar performance with potentially different initial accuracy grading. REF02BUE4 is a lead-free version of the same functional device. Verify pinout compatibility and thermal characteristics before substituting any alternative part numbers.