REF5025AIDR

Overview

The REF5025AIDR is a precision series voltage reference IC manufactured by Texas Instruments, housed in an 8-SOIC surface-mount package. It provides a fixed output voltage of 2.5 V with an initial accuracy tolerance of ±0.1%. The device operates within an input voltage range of 2.7 V to 18 V and supports a maximum output current of 10 mA. Key electrical parameters include a supply current of 1.2 mA, a noise level of 7.5 µVpp/V from 0.1 Hz to 10 Hz, and a temperature coefficient of 8 ppm/°C. It functions reliably across a junction temperature range of -40°C to +125°C.

Feature Summary

• Delivers high-precision voltage regulation with low initial accuracy error for sensitive analog circuits
• Features ultra-low noise performance suitable for high-resolution data acquisition systems
• Provides stable operation under varying line and load conditions

Applications

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

Procurement Notes

Verify the specific suffix 'IDR' corresponds to the SOIC-8 tape-and-reel packaging configuration. Confirm that the required accuracy class matches the ±0.1% specification rather than tighter grades. Ensure thermal management aligns with the 125°C maximum operating temperature limit during system integration.

Selection Notes

Select this component when a fixed 2.5 V reference with sub-percent accuracy is required. The low noise characteristic makes it appropriate for applications demanding signal integrity over wide dynamic ranges. Consider the 10 mA drive capability against the specific load requirements of the downstream circuitry.

Part Context

This part belongs to the REF5025 family of precision voltage references designed for demanding industrial and medical applications. The REF5025AIDR variant specifically utilizes the standard SOIC-8 footprint, distinguishing it from ceramic or wider-body packages found in other family members like the SHKQ.

Replacement Considerations

REF5025AIDRG4 is a verified equivalent part number representing the same functional specifications and pinout.