REF2025AIDDCT

Overview

The REF2025AIDDCT is a dual-output series voltage reference manufactured by Texas Instruments, housed in a TSOT-23-5 thin package. It provides fixed output voltages of 1.24V and 2.5V with an initial accuracy tolerance of ±0.05%. The device operates within an input voltage range of 2.52V to 5.5V and delivers a maximum output current of 20 mA while consuming only 460 µA of supply current. It features a low temperature coefficient of 8 ppm/°C and a peak-to-peak noise of 12 ppm between 0.1 Hz and 10 Hz. The component supports surface mount installation and functions reliably across a wide operating temperature range from -40°C to +125°C.

Feature Summary

• Dual-output architecture providing simultaneous 1.24V and 2.5V references in a compact footprint
• High precision performance characterized by ±0.05% initial accuracy and low drift
• Low power consumption design suitable for battery-operated systems

Applications

• Portable instrumentation requiring stable multi-rail supplies
• Data acquisition systems utilizing analog-to-digital converters
• Industrial process control circuits demanding high accuracy

Procurement Notes

Verify the specific suffix 'CT' indicates cut tape packaging when sourcing samples or small quantities. Confirm the manufacturer part number matches exactly to ensure the correct pinout and electrical specifications. Check RoHS compliance status as required by project regulations. Ensure the ordering quantity aligns with the available packaging options such as reel or cut tape formats provided by distributors.

Selection Notes

Select this component when dual independent voltage rails are needed from a single source without external resistors. The TSOT-23-5 package offers space savings compared to larger SOIC options. Consider the 20 mA output capability for driving moderate loads directly. Evaluate the 460 µA quiescent current against system power budgets for portable applications.

Part Context

This part belongs to the REF2025 family of dual-output, low-drift, low-power voltage references from Texas Instruments. The family includes variants with different output voltages such as REF2030 and REF2033. These devices are designed to replace discrete resistor divider networks, simplifying circuit design and improving long-term stability in precision analog front ends.

Replacement Considerations

Direct functional substitutes within the same family include REF2030AIDDCT and REF2033AIDDCT, which share identical packages and pinouts but offer different fixed output combinations.