REF5020IDRG4

Overview

The REF5020IDRG4 is a precision series voltage reference from Texas Instruments, delivering a fixed output of 2.048V. It features an initial accuracy of ±0.1% and a temperature coefficient of 8 ppm/°C. The device operates within an input voltage range of 2.7V to 18V, supporting a maximum output current of 10mA with a supply current of 1.2mA. Noise performance is specified at 6µVpp over the 0.1Hz to 10Hz band. It functions across a temperature range of -40°C to 125°C and utilizes an 8-SOIC surface-mount package.

Feature Summary

• Provides high-precision fixed voltage output with low drift characteristics
• Features low noise performance suitable for sensitive analog circuits
• Supports wide input voltage range for flexible power supply integration

Applications

• Data acquisition systems requiring stable reference voltages
• Industrial process control instrumentation
• Medical equipment signal conditioning

Procurement Notes

Verify the specific suffix 'RG4' indicates tape-and-reel packaging when sourcing components. Confirm that the ±0.1% accuracy class matches design requirements, as other variants in the family offer tighter tolerances. Ensure the 8-SOIC footprint aligns with the target PCB layout. Cross-reference the manufacturer datasheet for moisture sensitivity level and handling precautions during assembly.

Selection Notes

Select this component when a 2.048V output is required with moderate precision. Consider alternative REF50xx variants if lower temperature coefficients or higher accuracy are necessary. Evaluate the 1.2mA supply current against system power budgets. Verify compatibility with the intended input voltage range and load conditions before finalizing the design.

Part Context

This part belongs to the REF50x family of precision voltage references designed for low-noise and very low-drift applications. The family includes various output voltages and packages, catering to diverse industrial and medical needs. The REF5020 specifically targets applications needing a 2.048V reference with standard precision levels.

Replacement Considerations

Direct pin-compatible replacements may include other REF50xx series parts with different output voltages or accuracies. Verify electrical parameters such as noise and drift when substituting with parts from other manufacturers.