REF5020AIDGKR

Overview

The REF5020AIDGKR is a precision voltage reference IC manufactured by Texas Instruments. It provides a fixed output voltage of 2.0 V with an initial accuracy of 0.02%. The device features a low temperature coefficient of 3 ppm/°C, ensuring stable performance across operating temperatures ranging from -40°C to +125°C. It operates within a supply voltage range of 2.7 V to 20 V and draws a maximum quiescent current of 80 µA. The component is housed in a 6-pin SOT-23 package (DGK suffix) suitable for surface-mount applications.

Feature Summary

• Provides high-precision fixed voltage output with minimal initial error
• Maintains stability over wide temperature ranges with low drift characteristics
• Designed for low power consumption in portable and battery-operated systems

Applications

• High-resolution data acquisition systems
• Precision analog-to-digital converter (ADC) references
• Medical instrumentation requiring stable voltage sources
• Industrial process control sensors

Procurement Notes

Verify the complete part number including the 'A' grade and 'DGKR' packaging suffix to ensure correct accuracy and reel quantity specifications. Confirm that the application environment does not exceed the maximum operating temperature of +125°C. Ensure input voltage remains within the specified 2.7 V to 20 V range to maintain regulation. Check for RoHS compliance status if required by your manufacturing standards.

Selection Notes

Select this component when a fixed 2.0 V reference is required with tight initial accuracy tolerances. It is suitable for designs needing low noise and low drift without the complexity of adjustable references. Consider the SOT-23 package size constraints and thermal management requirements for high-density PCB layouts. Compare against other grades if higher accuracy or different output voltages are needed.

Part Context

This part belongs to the REF50xx series of precision voltage references from Texas Instruments. These devices are designed to replace older zener-based references with superior stability and lower noise. The series offers various output voltages and accuracy grades to meet diverse industrial and consumer electronics requirements.

Replacement Considerations

Check for direct pin-compatible alternatives such as the REF5020AIDKT or REF5020AIDGK depending on packaging preferences. Verify that substitute parts match the 3 ppm/°C temperature coefficient and 0.02% initial accuracy specifications.