REF2912AIDBZT

Overview

The REF2912AIDBZT is a fixed series voltage reference IC manufactured by Texas Instruments, providing a precise output of 1.25 V. It features an initial accuracy of ±2% and a temperature coefficient of 100 ppm/°C. The device operates within an input voltage range of 1.8 V 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 1.25 V reference output with high precision for sensitive analog circuits.
• Operates efficiently with low quiescent current consumption suitable for battery-powered applications.
• Delivers reliable performance across a wide industrial temperature range without external compensation.

Applications

• Precision data acquisition systems requiring stable reference voltages
• Battery-powered instrumentation and portable measurement devices
• Analog-to-digital converter (ADC) reference inputs

Procurement Notes

Verify the specific suffix 'DBZT' corresponds to the SOT-23-3 surface-mount package and tape-and-reel or cut-tape availability as listed by authorized distributors. Confirm that the ±2% initial accuracy meets your circuit tolerance requirements before finalizing procurement orders.

Selection Notes

Select this component when a fixed 1.25 V reference is required in a small SOT-23-3 footprint. It is appropriate for designs needing moderate accuracy (±2%) and low power consumption. Consider higher precision variants like the REF3312 if tighter tolerances are necessary.

Part Context

This part belongs to the REF29xx family of low-power, precision voltage references from Texas Instruments. These devices are designed to replace zener diodes and other less stable reference sources in modern electronic designs, offering improved line regulation and thermal stability.

Replacement Considerations

Direct pin-compatible substitutes within the same family include REF2912AIDBZR. For different accuracies, consider REF3012AIDBZT (0.2% accuracy) or REF3312AIDBZT (0.15% accuracy), ensuring input voltage and current specifications remain compatible.