REF3212AIDBVTG4

Overview

The REF3212AIDBVTG4 is a precision series voltage reference IC manufactured by Texas Instruments. It provides a fixed output voltage of 1.25 V with an initial accuracy of ±0.2%. The device operates within an input voltage range of 1.8 V to 5.5 V and draws a supply current of 135 µA. It features a low temperature coefficient of 20 ppm/°C and supports a maximum output current of 10 mA. The component is housed in a SOT-23-6 package, rated for operation between -40°C and +125°C, and meets RoHS3 standards.

Feature Summary

• Delivers high-precision fixed voltage output with tight initial accuracy tolerance
• Optimized for low power consumption through minimal supply current draw
• Ensures stable performance across wide industrial temperature ranges
• Designed for compact surface-mount integration in space-constrained applications

Applications

• Precision analog-to-digital converter (ADC) reference sources
• Data acquisition systems requiring stable voltage benchmarks
• Battery-powered instrumentation with strict power constraints
• Industrial process control signal conditioning circuits

Procurement Notes

Verify the specific suffix G4 indicates lead-free compliance and environmental adherence before procurement. Confirm the SOT-23-6 package dimensions match your PCB footprint requirements. Ensure input voltage remains within the specified 1.8 V to 5.5 V range during operation. Check for moisture sensitivity level handling instructions if storage conditions exceed factory limits. Validate that the ±0.2% accuracy meets your system's noise and drift specifications.

Selection Notes

Select this component when a fixed 1.25 V reference is required with high initial accuracy. Consider the 135 µA supply current for battery life calculations in portable devices. The SOT-23-6 package offers a compact solution for dense circuit boards. Evaluate the 20 ppm/°C temperature coefficient against thermal environment stability needs. Compare output current capabilities with load requirements to ensure adequate drive strength.

Part Context

This part belongs to the REF3212 family of precision voltage references from Texas Instruments. The family includes variants with different output voltages and accuracies, such as the REF3220 and REF3240. These components are designed for general-purpose precision applications requiring stable voltage benchmarks. The REF3212 specifically targets applications needing a low-voltage, low-power reference source.

Replacement Considerations

Direct substitutes include other parts from the REF3212 family with compatible pinouts and electrical characteristics. Verify package compatibility and thermal performance when considering alternative manufacturers. Ensure replacement parts meet the same RoHS3 and humidity sensitivity requirements.