Overview
The REF5020AIDGKR, produced by Texas Instruments, is a high-precision voltage reference component belonging to the REF50xx family. This device is known for its low noise, low drift, and high accuracy, making it an excellent choice for high-precision data acquisition systems. The REF5020AIDGKR is available in enhanced, high, and standard grades, each offering different levels of precision and performance. It is capable of both sinking and sourcing current and features excellent line and load regulation. The component is packaged in an 8-pin VSSOP (DGK) and operates over a temperature range of -40°C to 125°C.
Key Specifications
| Specification | Enhanced Grade | High Grade | Standard Grade |
|---|---|---|---|
| Temperature Drift (maximum) | 2.5 ppm/°C | 3 ppm/°C | 8 ppm/°C |
| Accuracy (maximum) | 0.025% | 0.05% | 0.1% |
| Noise | 0.5 µVPP/V | 3 µVPP/V | 3 µVPP/V |
| Long-term Stability | 22 ppm after 1000 hours (SOIC-8) | 50 ppm after 1000 hours (VSSOP-8) | 50 ppm after 1000 hours (VSSOP-8) |
| Input Voltage Support | Up to 42 V | Up to 18 V | Up to 18 V |
| Output Current | ±10 mA | ±10 mA | ±10 mA |
| Temperature Range | -40°C to 125°C | -40°C to 125°C | -40°C to 125°C |
| Package | 8-pin VSSOP (DGK) | 8-pin VSSOP (DGK) | 8-pin VSSOP (DGK) |
Key Features
- Low Temperature Drift: Excellent temperature drift as low as 2.5 ppm/°C in the enhanced grade, ensuring high stability over temperature variations.
- High Accuracy: High accuracy with a maximum of 0.025% in the enhanced grade, making it suitable for precise applications.
- Low Noise: Very low flicker noise of 0.5 µVPP/V in the enhanced grade, which is crucial for high-precision measurements.
- Excellent Long-term Stability: Long-term stability with drift as low as 22 ppm after the first 1000 hours in SOIC-8 packages.
- Wide Input Voltage Support: Supports input voltages up to 42 V in the enhanced grade, allowing direct connection to batteries or field supplies.
- High Output Current: Capable of sourcing and sinking current up to ±10 mA.
- Excellent Line and Load Regulation: Maintains stable output voltage under varying line and load conditions.
Applications
- Precision Data Acquisition Systems: Ideal for high-precision data acquisition due to its low noise and high accuracy.
- Semiconductor Test Equipment: Used in testing and calibration of semiconductor devices.
- Industrial Process Controls: Suitable for precise control and measurement in industrial processes.
- Medical Instrumentation: Used in medical devices requiring high precision and stability.
- Pressure and Temperature Transmitters: Employed in transmitters for precise measurement of pressure and temperature.
- Lab and Field Instrumentation: Used in various laboratory and field instruments requiring high precision voltage references.
Q & A
- What is the temperature drift of the REF5020AIDGKR in the enhanced grade?
The temperature drift in the enhanced grade is 2.5 ppm/°C.
- What is the maximum accuracy of the REF5020AIDGKR in the enhanced grade?
The maximum accuracy in the enhanced grade is 0.025%.
- What is the noise level of the REF5020AIDGKR in the enhanced grade?
The noise level in the enhanced grade is 0.5 µVPP/V.
- What is the long-term stability of the REF5020AIDGKR after 1000 hours in a VSSOP package?
The long-term stability after 1000 hours in a VSSOP package is 50 ppm.
- What is the maximum input voltage support for the REF5020AIDGKR in the enhanced grade?
The maximum input voltage support in the enhanced grade is up to 42 V.
- What is the output current capability of the REF5020AIDGKR?
The REF5020AIDGKR can source and sink current up to ±10 mA.
- What is the operating temperature range of the REF5020AIDGKR?
The operating temperature range is -40°C to 125°C.
- In what package is the REF5020AIDGKR available?
The REF5020AIDGKR is available in an 8-pin VSSOP (DGK) package.
- What are some common applications of the REF5020AIDGKR?
Common applications include precision data acquisition systems, semiconductor test equipment, industrial process controls, medical instrumentation, and lab and field instrumentation.
- Does the REF5020AIDGKR support both sinking and sourcing current?
