REF3212AIDBVT

Overview

The REF3212AIDBVT is a series voltage reference IC manufactured by Texas Instruments, housed in a SOT-23-6 surface-mount package. It provides a fixed output voltage of 1.25V with an initial accuracy tolerance of ±0.2%. The device operates within an input voltage range of 1.8V to 5.5V and draws a supply current of 135µA. It supports a maximum output current of 10mA and features a temperature coefficient of 20ppm/°C. Noise performance is specified at 17µVp-p for the 0.1Hz to 10Hz band and 24µVrms for the 10Hz to 10kHz band. The component functions reliably across an operating temperature range of -40°C to 125°C.

Feature Summary

• Delivers high precision with ±0.2% initial accuracy and low temperature drift of 20ppm/°C
• Optimized for low-noise applications with reduced flicker noise characteristics
• Supports rail-to-rail operation with wide input voltage compatibility from 1.8V to 5.5V

Applications

• Precision analog-to-digital converter (ADC) reference sources
• Data acquisition systems requiring stable voltage references
• Portable instrumentation powered by single-supply batteries

Procurement Notes

Verify the specific suffix 'AIDBVT' to confirm the SOT-23-6 package and industrial temperature grade. Ensure the ordering part number matches the required tape-and-reel or cut-tape configuration. Confirm RoHS compliance status and moisture sensitivity level requirements against project specifications before finalizing procurement orders.

Selection Notes

Select this component when a compact SOT-23-6 footprint is required alongside high accuracy. Compare noise specifications against other series references if ultra-low noise is critical. Consider the 135µA supply current relative to battery life constraints in portable designs versus lower-power alternatives like the REF30xx series.

Part Context

This part belongs to the REF32xx family of micropower voltage references designed for space-constrained applications. It shares functional similarities with other members of the series but offers specific output voltage and package variations. The device integrates internal bandgap circuitry to maintain stability over temperature and line voltage variations without external components.

Replacement Considerations

Direct pin-compatible substitutes within the same package include other REF32xx variants such as REF3225AIDBVT or REF3240AIDBVT, provided the output voltage difference is acceptable. Cross-family replacements require verification of pinout compatibility and thermal performance.