REF5025AIDG4

Overview

The REF5025AIDG4 is a precision series voltage reference IC manufactured by Texas Instruments, housed in an 8-SOIC package. It provides a fixed output voltage of 2.5V with an initial accuracy tolerance of ±0.1%. The device operates within an input voltage range of 2.7V to 18V and draws a supply current of 1.2mA. Key performance metrics include a temperature coefficient of 8ppm/°C and low noise characteristics of 7.5µVpp/V measured between 0.1Hz and 10Hz. It supports a maximum output current of 10mA and functions reliably across a junction temperature range of -40°C to 125°C.

Feature Summary

• Delivers high-precision voltage regulation with tight initial accuracy tolerances for critical analog circuits.
• Features low-noise performance suitable for sensitive signal processing applications.
• Provides stable operation over wide input voltage variations and temperature extremes.

Applications

• High-resolution data acquisition systems
• Precision measurement instrumentation
• Industrial process control loops

Procurement Notes

Verify the specific suffix G4 indicates lead-free compliance and RoHS3 status when sourcing. Confirm the SOIC-8 package dimensions match your PCB footprint requirements. Ensure the 2.7V minimum input voltage aligns with your system power rails. Check for moisture sensitivity level 2 handling requirements during assembly.

Selection Notes

Select this component when a 2.5V reference with 0.1% accuracy is required in a standard surface-mount package. Compare against higher accuracy variants like the ID grade if tighter tolerances are needed. Consider the REF5025MDTEP for lower drift applications requiring different packaging. Evaluate power consumption constraints relative to the 1.2mA supply current draw.

Part Context

This part belongs to the REF50xx family of precision voltage references from Texas Instruments. The family includes various output voltages and accuracy grades tailored for different industrial and medical applications. The REF5025 variant specifically targets the common 2.5V reference requirement in ADC and DAC biasing circuits.

Replacement Considerations

Direct pin-compatible alternatives within the same family include REF5025ID for improved accuracy or REF5025AIDR for reel packaging options. Cross-brand substitutes require careful verification of thermal drift and noise specifications.