REF3233AIDBVR

Overview

The REF3233AIDBVR is a fixed series voltage reference IC manufactured by Texas Instruments, housed in an SOT-23-6 surface-mount package. It provides a stable 3.3V output with an initial accuracy of ±0.2%. The device operates within an input voltage range of 3.35V to 5.5V and supports a maximum output current of 10 mA. Key electrical characteristics include a supply current of 135 µA, a temperature coefficient of 20 ppm/°C, low-frequency noise of 43 µVp-p (0.1Hz to 10Hz), and RMS noise of 63 µVrms (10Hz to 10kHz). It functions reliably across a temperature range of -40°C to +125°C.

Feature Summary

• Delivers high precision with ±0.2% initial accuracy for critical analog circuitry.
• Features low power consumption suitable for battery-operated systems.
• Provides stable performance over wide temperature variations.

Applications

• Data acquisition systems requiring precise voltage references
• Industrial process control instrumentation
• Portable medical devices

Procurement Notes

Verify the component status as Not Recommended for New Designs (NRND) before implementation. Confirm that the SOT-23-6 package dimensions align with existing PCB footprints. Ensure the 3.3V fixed output matches system requirements, as adjustable alternatives are not available in this specific part number. Check RoHS3 compliance documentation for regulatory adherence.

Selection Notes

Select this component when a fixed 3.25V or 3.3V reference is required with tight tolerance specifications. The SOT-23-6 package offers space efficiency compared to larger packages. Consider the 10 mA load capability against downstream circuit demands. Evaluate the 20 ppm/°C drift against thermal environment stability needs.

Part Context

This part belongs to the REF32xx family of precision voltage references from Texas Instruments. It shares the same SOT-23-6 footprint and general architecture with other variants like the REF3225 and REF3230, differing primarily in their fixed output voltages. The family is designed for applications demanding low noise and high accuracy in compact form factors.

Replacement Considerations

Public confirmed substitute part numbers: REF3233AIDBVRG4.