REF3220AIDBVT

Overview

The REF3220AIDBVT 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 2.048V with an initial accuracy tolerance of ±0.2%. The device operates within an input voltage range of 2.098V to 5.5V and draws a supply current of 135µA. It supports a maximum output current of 10 mA and features a temperature coefficient of 20ppm/°C. Noise specifications include 27µVp-p from 0.1Hz to 10Hz and 39µVrms from 10Hz to 10kHz. The component functions reliably across a junction temperature range of -40°C to 125°C.

Feature Summary

• Delivers high precision voltage referencing with tight initial accuracy tolerances for sensitive analog circuits.
• Integrates low-noise performance characteristics suitable for data acquisition and signal conditioning applications.
• Utilizes a compact surface-mount footprint to facilitate space-constrained board layouts.

Applications

• Data acquisition systems requiring stable reference voltages
• Industrial process control instrumentation
• Medical equipment signal processing chains

Procurement Notes

Verify the specific suffix DBVT corresponds to the tape-and-reel packaging configuration required for automated assembly processes. Confirm that the A-grade accuracy classification meets the strict tolerance requirements of the target design. Ensure compatibility with RoHS3 standards if environmental compliance is mandated for the end product. Cross-reference the manufacturer part number against official distributors to avoid counterfeit components.

Selection Notes

Choose this component when a 2.048V fixed output is specifically required rather than other standard values like 2.5V or 3.0V. Consider the 135µA quiescent current consumption against system power budget constraints. Evaluate the SOT-23-6 thermal dissipation capabilities relative to the 10mA load current capability. Compare noise performance metrics against alternative references if ultra-low noise is critical for the application.

Part Context

This part belongs to the REF32xx family of series voltage references from Texas Instruments, designed for general-purpose precision applications. It shares architectural similarities with other members like the REF3225 and REF3230 but differs in its specific fixed output voltage setting. The family targets cost-sensitive designs needing reliable performance without the complexity of adjustable references.

Replacement Considerations

REF3220AMDBVREP is a documented substitute option available from the manufacturer, though it carries a 'Not Recommended for New Designs' status. Verify pinout compatibility and electrical parameter alignment before substituting in existing hardware.

FAQ

What is the maximum output current capability of the REF3220AIDBVT?

The device supports a maximum output current of 10 mA.

Does the REF3220AIDBVT support rail-to-rail input operation?

No, the minimum operating input voltage is specified as 2.098V, which is above the nominal 2.048V output.