Key Selection Information
| Selection Parameter | Confirmed Information |
|---|---|
| Output | 5.0 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 5050 A |
Product Overview
REF5050AIDR provides the REF50 precision architecture at a 5.0 V nominal output, useful for converters and measurement systems that need a larger full-scale reference than the 2.5 V REF5025.
A higher reference voltage can improve volts-per-code signal range for a compatible ADC or DAC, but it also requires enough supply headroom and may increase absolute noise when noise is specified relative to output voltage.
This exact AIDR order code is the standard A grade, not the tighter I/EI grade. It is supplied in SOIC-8 on a 2500-piece reel.
For related devices, see HKEQGOO’s Voltage References category.
Technical Specifications
| Parameter | Verified Information |
|---|---|
| Manufacturer | Texas Instruments |
| Exact MPN | REF5050AIDR |
| Output | 5.0 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 5050 A |
| Manufacturer Status | Active / Production |
| Part Marking | REF 5050 A |
Functional Highlights
5 V reference expands converter input/output span
When the converter supports it, a 5 V reference can maximize dynamic range for larger sensor or analog-output signals.
Same REF50 family does not mean same output-voltage system behavior
Reference headroom, converter limits and analog front-end swing must all be rechecked when moving from 2.5 V to 5 V.
Design Considerations
- Confirm the upstream supply provides the required headroom above 5 V.
- Use A-grade drift/accuracy limits for this exact order code.
- Check ADC/DAC reference-input current and dynamic loading against REF50 output behavior.
Product Status and Exact Order Code
Manufacturer status: Active / Production
Texas Instruments lists REF5050AIDR as Active / Production; SOIC (D), 8 pins; 2500-piece large tape and reel; −40°C to +125°C; marking REF 5050 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.
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To request a quotation, provide the manufacturer part number, required quantity, destination, target Date Code if applicable, and any testing or inspection requirements.
