REF5020AQDRQ1

Overview

The REF5020AQDRQ1 is a fixed series voltage reference IC from Texas Instruments, providing a nominal output of 2.048V. It features an initial accuracy of ±0.1% and a temperature coefficient of 8ppm/°C. The device operates within an input voltage range of 2.7V to 18V and supports a maximum load current of 10mA with a supply current of 1.2mA. It is housed in an 8-SOIC package and certified to AEC-Q100 standards for automotive applications, functioning reliably between -40°C and +125°C.

Feature Summary

• AEC-Q100 qualified for automotive reliability requirements
• Low noise performance suitable for precision analog circuits
• High initial accuracy ensures stable reference voltage
• Wide operating temperature range for harsh environments

Applications

• Automotive data acquisition systems
• Precision analog-to-digital converter references
• Medical instrumentation signal conditioning
• Industrial process control sensors

Procurement Notes

Verify the specific suffix 'AQDRQ1' to confirm AEC-Q100 automotive qualification and SOIC-8 packaging. Ensure compatibility with system input voltage limits not exceeding 18V. Confirm thermal management meets the -40°C to +125°C operational range. Check for moisture sensitivity level 2 handling requirements during assembly. Validate that the 10mA output current capability aligns with downstream circuit demands.

Selection Notes

Select this component when automotive certification is mandatory for voltage reference stability. Choose over non-automotive variants if long-term reliability in vehicle environments is required. Consider the 2.048V output specifically for interfacing with ADCs requiring standard reference levels. Evaluate the 8-SOIC package for PCB space constraints compared to smaller footprints. Compare supply current consumption against battery-powered application budgets.

Part Context

This part belongs to the REF50xx-Q1 family of low-noise, very low drift precision voltage references designed by Texas Instruments. The family includes various output voltages such as 2.5V, 4.5V, and others, all sharing similar architectural benefits. The 'Q1' designation indicates compliance with automotive quality standards, distinguishing it from commercial grade counterparts like the REF5020IDR.

Replacement Considerations

REF5020IDR offers identical electrical specifications but lacks AEC-Q100 automotive qualification. REF5025AQDRQ1 provides a different fixed output voltage of 2.5V while maintaining automotive grade status.