REF3433IDBVR

Overview

The REF3433IDBVR is a precision series voltage reference from Texas Instruments, delivering a fixed output of 3.3 V in an SOT-23-6 package. It features an initial accuracy of ±0.05% and a low temperature coefficient of 6 ppm/°C. The device operates with a supply current of 95 µA and supports a maximum input voltage of 12 V. It provides a maximum shunt current of 10 mA and functions within a temperature range of -40°C to +125°C.

Feature Summary

• High precision performance with ±0.05% initial accuracy and 6 ppm/°C temperature coefficient
• Low power consumption with 95 µA supply current for battery-operated applications
• Integrated shutdown capability to minimize power usage when inactive
• Small SOT-23-6 footprint suitable for space-constrained designs

Applications

• Portable instrumentation requiring high accuracy
• Battery-powered measurement systems
• Data acquisition systems
• Industrial process control loops

Procurement Notes

Verify the specific suffix IDBVR to confirm the commercial grade temperature range and packaging type. Ensure compatibility with your PCB layout regarding the SOT-23-6 footprint. Check for moisture sensitivity level requirements during storage and handling. Confirm RoHS compliance status for your region's regulatory needs. Validate that the 12 V maximum input voltage aligns with your system supply rails.

Selection Notes

Select this component when high accuracy and low drift are critical over a wide temperature range. Compare against the REF3233 series if lower cost or different accuracy specifications suffice. Consider the 10 mA load capability for driving downstream ADCs directly. Evaluate the 95 µA quiescent current impact on overall system battery life. Ensure the SOT-23-6 package fits your mechanical constraints.

Part Context

This part belongs to the REF34xx family of precision voltage references from Texas Instruments. It shares the same core architecture as other variants in the series but offers specific output voltage and accuracy characteristics. The REF3433IDBVR is designed to replace older generation references like the REF3233 in modern compact designs.

FAQ

What is the maximum input voltage for the REF3433IDBVR?

The maximum input voltage is 12 V.

Does the REF3433IDBVR support shutdown mode?

Yes, the device includes a shutdown feature to reduce power consumption.