REF1925AIDDCT

Overview

The REF1925AIDDCT is a dual-output voltage reference from Texas Instruments, housed in a SOT-23-Thin-5 package. It provides fixed output voltages of 1.25 V and 2.5 V with an initial accuracy of 0.1%. The device operates within an input voltage range up to 5.5 V and supports a maximum shunt current of 20 mA. It features a temperature coefficient of 25 PPM/C and consumes 360 uA of operating supply current. The component functions across a wide temperature range from -40 C to +125 C.

Feature Summary

• Dual-output architecture delivering both full reference voltage and half-reference voltage simultaneously
• High precision performance characterized by 0.1% initial accuracy and low temperature drift
• Compact surface-mount design utilizing the SOT-23-Thin-5 footprint for space-constrained applications

Applications

• Analog-to-digital converter (ADC) reference inputs
• Digital-to-analog converter (DAC) voltage sources
• Precision measurement instrumentation systems
• Data acquisition circuits requiring stable biasing

Procurement Notes

Verify the specific suffix 'DCT' corresponds to the tape-and-reel packaging configuration required for automated assembly processes. Confirm that the thermal management capabilities of the SOT-23-Thin-5 package align with the expected power dissipation under maximum load conditions. Ensure compliance with RoHS directives and moisture sensitivity level requirements for the intended manufacturing environment.

Selection Notes

Select this component when a single package must provide two distinct, highly accurate voltage levels without external resistor networks. The 0.1% accuracy makes it suitable for high-resolution data conversion applications. Consider the 360 uA quiescent current as a factor for battery-powered designs where power efficiency is critical alongside precision.

Part Context

This part belongs to the REF1925 series of dual-output voltage references designed for precision analog signal processing. It integrates both series and shunt reference elements into a single compact solution, eliminating the need for multiple discrete components or complex external circuitry to generate complementary voltage rails.

Replacement Considerations

The REF1925AIDDCR serves as a verified substitute offering identical electrical specifications and functionality. Both variants share the same pinout and package dimensions, allowing for direct replacement in existing designs without schematic modifications.