REF5020AID

Overview

The REF5020AID is a fixed series voltage reference IC from Texas Instruments, housed in an 8-pin SOIC surface-mount package. It provides a nominal output voltage of 2.048V with an initial accuracy of ±0.05%. The device operates within an input voltage range of 2.25V to 18V and delivers a maximum output current of 10mA while consuming only 1.2mA of supply current. It features a low temperature coefficient of 3 ppm/°C and line regulation of 1 ppm/V. The component functions reliably across an extended industrial temperature range from -40°C to +125°C.

Feature Summary

• Provides high-precision fixed voltage reference with ±0.05% initial accuracy
• Features ultra-low temperature drift of 3 ppm/°C for thermal stability
• Supports wide input voltage range up to 18V with low quiescent current
• Designed for surface-mount assembly in compact 8-SOIC packages

Applications

• High-resolution data acquisition systems requiring stable reference voltages
• Precision analog-to-digital converter (ADC) front-end conditioning
• Industrial process control instrumentation calibration circuits
• Medical diagnostic equipment signal processing chains

Procurement Notes

Verify the specific suffix 'ID' against official Texas Instruments documentation to confirm the ±0.05% accuracy grade and SOIC package variant. Ensure compatibility with your PCB footprint dimensions for the 8-SOIC housing. Confirm that the operating environment remains within the specified -40°C to +125°C range to maintain guaranteed performance specifications.

Selection Notes

Select this component when application requirements demand tighter initial accuracy than standard ±0.1% or ±0.2% references offer. The low temperature coefficient makes it suitable for environments with significant thermal fluctuations. Consider the 10mA output capability if driving moderate capacitive loads or multiple downstream stages without external buffering.

Part Context

This part belongs to the REF5020 family of precision voltage references designed for demanding measurement applications. The family offers various accuracy grades and output voltages, all sharing similar low-noise and low-drift characteristics. The REF5020AID specifically represents the highest accuracy tier within the 2.048V output option, targeting cost-sensitive yet high-performance industrial designs.

Replacement Considerations

Check for direct pin-compatible alternatives such as other REF5020 variants with different accuracy grades or output voltages. Verify if newer generation references from Texas Instruments or competitors offer improved noise performance or lower power consumption while maintaining the same package outline.