REF3125AIDBZT

Overview

The REF3125AIDBZT is a precision series voltage reference IC manufactured by Texas Instruments. It provides a fixed output voltage of 2.5 V with an initial accuracy of ±0.2%. The device operates within an input voltage range of 2.55 V to 5.5 V and draws a supply current of 100 µA. It features a temperature coefficient of 20 ppm/°C and supports a maximum load current of 10 mA. The component is housed in a SOT-23-3 package and functions reliably across a temperature range of -40°C to +125°C.

Feature Summary

• Provides stable series reference voltage with high initial accuracy
• Operates efficiently with low quiescent current consumption
• Maintains performance stability over extended industrial temperature ranges

Applications

• Precision analog-to-digital converter (ADC) reference sources
• Digital-to-analog converter (DAC) voltage references
• Battery-powered instrumentation circuits
• Data acquisition systems requiring stable voltage rails

Procurement Notes

Verify the specific suffix 'T' indicates tape-and-reel packaging configuration distinct from cut-tape or tube options. Confirm RoHS compliance status and lead times directly with authorized distributors, as manufacturing schedules may vary. Ensure the ordering part number matches the required package style and electrical grade for your specific design implementation.

Selection Notes

Select this component when a fixed 2.5 V reference is required with tight initial tolerance specifications. The low power consumption makes it suitable for battery-operated applications where efficiency is critical. Verify that the input voltage remains within the specified operational limits to ensure regulation stability and prevent excessive power dissipation during normal operation.

Part Context

This device belongs to the REF3125 family of precision voltage references from Texas Instruments. It shares core electrical characteristics with other variants in the series but differs in packaging and shipping format. The REF3125AIDBZT specifically denotes the SOT-23-3 surface-mount package with tape-and-reel delivery, designed for automated assembly processes.

Replacement Considerations

The REF3125AIDBZR serves as a functional equivalent with identical electrical specifications, differing primarily in reel quantity packaging. Other members of the REF312x family offer different output voltages while maintaining similar performance profiles.