REF2930AIDBZR

Overview

The REF2930AIDBZR is a precision series voltage reference from Texas Instruments, delivering a fixed output of 3 V. It features an initial accuracy of 2% and a temperature coefficient of 100 ppm/°C. The device operates within an input voltage range up to 5.5 V and supports a maximum shunt current of 25 mA. Quiescent current consumption is typically 42 µA, with a maximum rating of 50 µA. It is housed in a compact SOT-23-3 package and functions reliably across an extended temperature range from -40°C to +125°C.

Feature Summary

• Provides a stable 3 V reference output with high long-term stability characteristics.
• Designed for low power consumption suitable for battery-operated applications.
• Capable of sourcing significant load current while maintaining regulation.
• Utilizes a small surface-mount footprint for space-constrained designs.

Applications

• Analog-to-digital converter (ADC) reference inputs
• Digital-to-analog converter (DAC) voltage sources
• Portable instrumentation requiring precise voltage standards
• Battery-powered measurement systems

Procurement Notes

Verify the specific suffix 'A' indicates the 2% initial accuracy grade and 'I' denotes the industrial temperature range. Confirm the 'DBZR' suffix corresponds to the SOT-23-3 package and tape-and-reel shipping format. Ensure compatibility with your system's input voltage limits not exceeding 5.5 V. Check for RoHS compliance status as indicated in official documentation. Validate that the 25 mA maximum shunt current meets your circuit requirements.

Selection Notes

Select this component when a fixed 3 V reference is required with moderate accuracy. Consider the 100 ppm/°C temperature coefficient against stricter thermal drift needs. Evaluate the 50 µA maximum quiescent current against ultra-low-power constraints. Compare the SOT-23-3 package size against available board space. Assess the 2% initial tolerance against calibration capabilities in the final application.

Part Context

This part belongs to the REF2930 series of precision voltage references manufactured by Texas Instruments. The series offers various output voltages and accuracy grades within the same package family. It serves as a fundamental building block for signal conditioning circuits requiring a reliable voltage standard. The device integrates bandgap reference technology optimized for low noise and stability.

Replacement Considerations

Official substitutes include other members of the REF2930 series with different voltage outputs or accuracy grades, such as REF2933AIDBZR for 3.3 V output. Cross-reference with REF3030AIDBZR if higher accuracy (0.2%) and lower temperature coefficient are required, noting the pinout compatibility.