Key Selection Information
| Selection Parameter | Confirmed Information |
|---|---|
| Output | 2.5 V |
| Grade | REF50xxA standard grade |
| Initial Accuracy | 0.1% maximum stated for standard grade |
| Temperature Drift | 8 ppm/°C maximum stated for standard grade |
| Low-Frequency Noise | 3 µVpp/V family standard/high-grade figure |
| Input Voltage | Wide-VIN family, up to 18 V for standard/high grades |
| Output Current | ±10 mA source/sink capability |
| Exact Package / Packing | SOIC (D), 8 pins; 2500-piece large reel; marking REF 5025 A |
Product Overview
REF5025AIDR is a 2.5 V precision reference for ADCs, DACs and measurement signal chains that need lower drift and lower low-frequency noise than compact micropower references.
The “A” in REF5025A identifies the standard grade. Current REF50 family documentation separates standard, high and enhanced grades; the exact A-grade specifications should be used instead of borrowing the tighter numbers from REF5025I or REF5025EI.
The SOIC package provides strong long-term-stability performance in the REF50 family and the IDR suffix selects a 2500-piece large reel.
For related devices, see HKEQGOO’s Voltage References category.
Technical Specifications
| Parameter | Verified Information |
|---|---|
| Manufacturer | Texas Instruments |
| Exact MPN | REF5025AIDR |
| Output | 2.5 V |
| Grade | REF50xxA standard grade |
| Initial Accuracy | 0.1% maximum stated for standard grade |
| Temperature Drift | 8 ppm/°C maximum stated for standard grade |
| Low-Frequency Noise | 3 µVpp/V family standard/high-grade figure |
| Input Voltage | Wide-VIN family, up to 18 V for standard/high grades |
| Output Current | ±10 mA source/sink capability |
| Exact Package / Packing | SOIC (D), 8 pins; 2500-piece large reel; marking REF 5025 A |
| Manufacturer Status | Active / Production |
| Part Marking | REF 5025 A |
Functional Highlights
Low drift supports precision converter full-scale stability
Reference drift directly appears as ADC/DAC gain drift, so an 8-ppm/°C-class reference can materially improve multi-temperature calibration stability.
Grade identity matters as much as the output voltage
REF5025A, REF5025I and REF5025EI share the 2.5 V nominal output but do not share the same accuracy/noise/drift limits.
Design Considerations
- Use the A-grade limits in the error budget for this exact part.
- Provide output decoupling and load conditions recommended by the REF50 datasheet.
- Minimize thermal gradients around the SOIC if ppm-level stability matters.
Product Status and Exact Order Code
Manufacturer status: Active / Production
Texas Instruments lists REF5025AIDR as Active / Production; SOIC (D), 8 pins; 2500-piece large tape and reel; −40°C to +125°C; marking REF 5025 A.
Related Engineering Resources
Quality & Verification Support
Third-party inspection or testing can be arranged according to customer requirements. Testing fees are borne by the buyer. Additional verification requirements can be discussed before shipment. After an order is placed, physical product, label, packaging, and Date Code photos may be provided where appropriate.
Request a Quote
To request a quotation, provide the manufacturer part number, required quantity, destination, target Date Code if applicable, and any testing or inspection requirements.
