REF2912AIDBZR

Overview

The REF2912AIDBZR is a fixed-output series voltage reference from Texas Instruments, providing a stable 1.25 V output. It operates within an input voltage range of 1.8 V to 5.5 V and draws a maximum supply current of 50 uA. The device features an initial accuracy of ±2% and a temperature coefficient of 100 ppm/°C. It supports a maximum shunt current of 25 mA and functions reliably across a temperature range of -40°C to +125°C. Packaged in a compact SOT-23-3 surface-mount case, it is designed for precision applications requiring low power consumption.

Feature Summary

• Provides a fixed 1.25 V reference output with high stability
• Operates on low supply current suitable for battery-powered systems
• Maintains performance across extended industrial temperature ranges

Applications

• Portable instrumentation circuits
• Battery-powered measurement devices
• Data acquisition systems

Procurement Notes

Verify the specific suffix 'DBZR' corresponds to the tape-and-reel packaging format required for automated assembly processes. Confirm that the ±2% initial accuracy meets the system tolerance requirements, as tighter tolerances are available in other variants within the REF2912 family. Ensure the 50 uA quiescent current aligns with the power budget constraints of the target application design.

Selection Notes

Select this component when a fixed 1.25 V reference is required in a minimal footprint SOT-23-3 package. It is appropriate for designs prioritizing low power consumption over ultra-high precision. Consider alternative REF29xx variants if stricter accuracy or lower temperature coefficients are necessary for the specific circuit topology.

Part Context

This part belongs to the REF2912 series of precision voltage references manufactured by Texas Instruments. The series offers various fixed output voltages and accuracy grades. The REF2912 specifically targets cost-sensitive applications where moderate precision is sufficient, distinguishing it from higher-performance families like the REF30 or REF50 series.

Replacement Considerations

The REF2912AIDBZT is a compatible variant offering identical electrical specifications but supplied in cut-tape packaging instead of reel format.