REF3225AIDBVT

Overview

The REF3225AIDBVT is a fixed series voltage reference IC manufactured by Texas Instruments, housed in an SOT-23-6 surface-mount package. It provides a precise 2.5V output with an initial accuracy of ±0.2%. The device operates within an input voltage range of 2.55V to 5.5V and draws a supply current of approximately 100µA to 135µA. It supports a maximum output current of 10mA and features a temperature coefficient of 20ppm/°C to 24ppm/°C. Noise performance is specified at 33µVp-p (0.1Hz to 10Hz) and 48µVrms (10Hz to 10kHz). 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 for stable reference applications
• Optimized for low power consumption with microamp-level supply current draw
• Provides robust noise filtering suitable for sensitive analog signal chains
• Ensures long-term stability across wide industrial temperature extremes

Applications

• Portable battery-powered instrumentation requiring low quiescent current
• Data acquisition systems utilizing analog-to-digital converters
• Industrial process control loops needing precise voltage references
• Medical equipment requiring stable reference voltages for sensor interfaces

Procurement Notes

Verify the specific suffix DBVT indicates tape-and-reel packaging when ordering. Confirm the A grade designation matches required accuracy specifications. Check current lifecycle status as components may be marked Not Recommended for New Designs. Ensure compatibility with existing PCB footprints for the SOT-23-6 package. Validate RoHS compliance requirements against project standards before final procurement.

Selection Notes

Select this component when a 2.5V reference is required with tight initial tolerance. Consider the low supply current for battery-operated designs where power efficiency is critical. Evaluate the noise specifications against ADC requirements for signal integrity. Compare the temperature coefficient against environmental operating conditions. Verify that the 10mA output drive capability meets load requirements without external buffering.

Part Context

This part belongs to the REF32xx family of precision voltage references from Texas Instruments. The family includes various output voltages and packages to support diverse design needs. The REF3225 variant specifically targets applications requiring a 2.5V nominal output. It complements other series references like the REF30xx and REF31xx families. The SOT-23-6 package allows for compact board layouts in space-constrained electronics.

Replacement Considerations

Direct substitutes include REF3225AIDBVR for reel-based assembly or REF3225AMDBVREPG4 for legacy compatibility. Analog Devices offers the ADR3425ARJZ-R7 as a functional alternative. Verify pinout compatibility and thermal characteristics when cross-referencing. Ensure output voltage and accuracy grades match original design specifications.