REF3120AIDBZT

Overview

The REF3120AIDBZT is a precision series voltage reference IC manufactured by Texas Instruments, housed in a compact SOT-23-3 surface-mount package. It provides a fixed output voltage of 2.048 V with an initial accuracy of ±0.2%. The device operates within an input voltage range of 2.098 V to 5.5 V and draws a supply current of 100 µA. It features a low temperature coefficient of 20 ppm/°C and supports a maximum load current of 10 mA. The component functions reliably across an extended industrial temperature range from -40°C to +125°C.

Feature Summary

• Delivers stable 2.048 V reference output with high initial accuracy
• Optimized for low power consumption with minimal supply current draw
• Maintains performance stability over wide temperature variations
• Designed for compact board space using small footprint packaging

Applications

• Analog-to-digital converter (ADC) reference inputs
• Digital-to-analog converter (DAC) voltage sources
• Precision measurement instrumentation circuits
• Battery-powered sensor signal conditioning

Procurement Notes

Verify the specific suffix 'A' indicates the initial accuracy grade and 'I' denotes the industrial temperature range when sourcing. Confirm the 'DBZT' suffix corresponds to the SOT-23-3 package and tape-and-reel shipping format. Ensure compatibility with RoHS3 compliance requirements for your manufacturing process. Cross-reference datasheet revision levels to confirm pinout consistency.

Selection Notes

Select this component when a precise 2.048 V rail is required for low-power applications. The SOT-23-3 form factor suits designs with strict spatial constraints. Consider the 20 ppm/°C drift specification against environmental thermal conditions. Evaluate the 10 mA load capability against downstream circuit demands to ensure adequate drive strength without exceeding limits.

Part Context

This part belongs to the REF31xx family of micropower voltage references from Texas Instruments. The family shares common architectural features including series topology and low noise characteristics. Variants within the series differ primarily in output voltage levels and specific accuracy grades while maintaining similar package options and operational parameters.

Replacement Considerations

The REF3120AIDBZR is the reel-pack equivalent of this cut-tape variant. Other REF3120 variants exist with different accuracy or temperature grades. Verify pinout and electrical specifications before substituting with non-Texas Instruments equivalents.