REF5050AQDRQ1

Overview

The REF5050AQDRQ1 is a precision series voltage reference IC manufactured by Texas Instruments, designed for automotive applications. It provides a fixed output voltage of 5V with an initial accuracy tolerance of ±0.1%. The device operates within an input voltage range of 5.2V to 18V and supports a maximum load current of 10 mA. Key performance metrics include a temperature coefficient of 8 ppm/°C and low noise characteristics of 15 µVpp from 0.1 Hz to 10 Hz. It functions reliably across a junction temperature range of -40°C to +125°C and consumes a supply current of 1.2 mA. The component is housed in an 8-SOIC surface-mount package.

Feature Summary

• Automotive-grade reliability certified under AEC-Q100 standards
• Low-noise architecture suitable for sensitive signal conditioning
• High-precision fixed output with minimal temperature drift

Applications

• Automotive sensor signal conditioning circuits
• Data acquisition systems requiring stable reference voltages
• Precision analog-to-digital converter (ADC) references

Procurement Notes

Verify the specific suffix 'Q1' confirms automotive qualification status. Ensure the SOIC-8 package matches the target PCB footprint. Confirm RoHS compliance and moisture sensitivity level requirements for assembly processes. Validate that the 5V output aligns with system design specifications before procurement.

Selection Notes

Select this component when automotive certification is mandatory for voltage reference stability. The 8-SOIC package offers a balance between thermal performance and board space efficiency. Consider the 10 mA output capability against load requirements. The low noise specification makes it suitable for high-resolution measurement applications where signal integrity is critical.

Part Context

This part belongs to the REF50xx family of precision voltage references from Texas Instruments. The family includes various output voltages and accuracy grades. The 'A' indicates a specific accuracy bin, while 'Q1' denotes automotive qualification. This series is engineered for industrial and automotive environments requiring long-term stability and low drift over temperature variations.

Replacement Considerations

REF5050IDR: Commercial grade version without automotive certification. REF5050AIDR: Commercial grade with similar electrical specifications but lacking Q1 qualification.