REF3212AIDBVR

Overview

The REF3212AIDBVR 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 10 mA and functions across a temperature range of -40°C to 125°C (TA). Key noise specifications include 17µVp-p from 0.1Hz to 10Hz and 24µVrms from 10Hz to 10Hz, with a temperature coefficient of 20ppm/°C.

Feature Summary

• Delivers high precision with a fixed 1.25V output and tight ±0.2% initial accuracy tolerance.
• Features low power consumption with a supply current of only 135µA for energy-efficient operation.
• Provides stable performance over a wide industrial temperature range from -40°C to 125°C.

Applications

• Precision analog-to-digital converter (ADC) reference sources
• Data acquisition systems requiring stable voltage references
• Battery-powered instrumentation due to low quiescent current

Procurement Notes

Verify the specific suffix 'DBVR' corresponds to the tape-and-reel packaging format required for your assembly line. Confirm that the component status is active for new designs, as availability may vary by region. Ensure compliance with RoHS3 standards if environmental regulations apply to your manufacturing process. Cross-reference the manufacturer part number with distributor codes to avoid ordering errors.

Selection Notes

Select this component when a 1.25V reference is needed with high accuracy and low power. Compare noise specifications against ADC requirements to ensure signal integrity. Verify that the input voltage range of 1.8V to 5.5V aligns with your system's supply rails. Consider the SOT-23-6 package size constraints during PCB layout planning.

Part Context

This part belongs to the REF32xx family of precision voltage references from Texas Instruments. It shares similar electrical characteristics and pinouts with other variants like the REF3220, REF3225, and REF3230, which offer different fixed output voltages. The family is designed for applications requiring small form factors and high precision in portable and industrial electronics.

Replacement Considerations

Direct substitutes within the same family include REF3212AIDBVT (same function, different reel option). Other REF32xx variants may serve as functional replacements if the output voltage requirement differs. Verify pin compatibility and thermal performance before substituting.