REF3225AIDBVRG4

Overview

The REF3225AIDBVRG4 is a fixed series voltage reference IC manufactured by Texas Instruments, featuring a nominal output of 2.5V with an initial accuracy of ±0.2%. It operates within an input voltage range of 2.55V to 5.5V and draws a supply current of 135µA. The device supports a maximum load current of 10mA and exhibits low noise characteristics, specified as 33µVp-p in the 0.1Hz to 10Hz band and 48µVrms from 10Hz to 10kHz. It has a temperature coefficient of 20ppm/°C and functions across a junction temperature range of -40°C to 125°C.

Feature Summary

• Provides a stable 2.5V fixed output with high precision tolerance.
• Designed for low power consumption suitable for battery-operated systems.
• Features low noise performance for sensitive analog signal processing.

Applications

• Data acquisition systems requiring precise voltage references
• Portable instrumentation and metering devices
• Industrial process control loops

Procurement Notes

Verify the suffix 'G4' indicates RoHS compliance and lead-free construction per Texas Instruments standards. Confirm the component status is Not Recommended for New Designs (NRND) before finalizing any long-term production plans. Ensure the SOT-23-6 package matches your PCB footprint requirements and that thermal management aligns with the specified operating temperature range.

Selection Notes

Select this component when a 2.5V reference is required with tight initial accuracy and low noise. Compare against other REF32xx variants if different output voltages or package types are needed. Consider the NRND status for future-proofing designs. Verify that the 10mA output current capability meets the load requirements of the downstream circuitry without exceeding specifications.

Part Context

This part belongs to the REF32xx family of micropower voltage references from Texas Instruments. These devices are designed to offer high precision and stability in small packages. The REF3225 variant specifically provides a 2.5V output, making it common in applications where this specific reference level is standard for ADCs or DACs. The DBVR suffix denotes the SOT-23-6 surface-mount package.

Replacement Considerations

Check for direct pin-compatible substitutes within the REF32xx family or newer TI voltage reference generations. Verify that any replacement maintains the 2.5V output, ±0.2% accuracy, and SOT-23-6 package form factor. Consult official substitution guides for confirmed equivalents.