Overview
The REF5020IDR, produced by Texas Instruments, is a high-precision voltage reference component that belongs to the REF50xx family. This device is renowned for its ultra-low noise, low drift, and high accuracy, making it an excellent choice for high-precision data acquisition systems. The REF5020IDR is available in various grades, including 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.
Key Specifications
| Specification | Enhanced Grade | High Grade | Standard Grade |
|---|---|---|---|
| Temperature Drift (maximum) | 2.5 ppm/°C | 3 ppm/°C | 8 ppm/°C |
| Initial 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 first 1000 hours (SOIC-8) | 50 ppm after first 1000 hours (VSSOP-8) | 50 ppm after first 1000 hours (VSSOP-8) |
| Input Voltage Range | 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 Options | SOIC-8, VSSOP-8 | SOIC-8, VSSOP-8 | SOIC-8, VSSOP-8 |
Key Features
- Low Temperature Drift: The REF5020IDR offers excellent temperature drift, with the enhanced grade providing as low as 2.5 ppm/°C, ensuring stable performance across a wide temperature range.
- High Accuracy: With initial accuracy as high as 0.025% for the enhanced grade, this component is ideal for applications requiring precise voltage references.
- Low Noise: The device features very low noise, with the enhanced grade having a noise level of 0.5 µVPP/V, making it suitable for high-precision applications.
- Excellent Long-term Stability: The REF5020IDR exhibits excellent long-term stability, with drift as low as 22 ppm after the first 1000 hours for SOIC-8 packages.
- High Output Current: Capable of sourcing and sinking up to ±10 mA, this component can handle a variety of load conditions.
- Wide Input Voltage Range: The enhanced grade supports input voltages up to 42 V, allowing for direct connection to batteries or field supplies.
Applications
- Precision Data Acquisition Systems: The REF5020IDR is well-suited for high-precision data acquisition systems due to its low noise and high accuracy.
- Semiconductor Test Equipment: Its stable voltage reference makes it ideal for semiconductor testing.
- Industrial Process Controls: Used in industrial control systems where precise voltage references are critical.
- Medical Instrumentation: Suitable for medical devices requiring high precision and stability.
- Pressure and Temperature Transmitters: Used in various sensing applications where accurate voltage references are necessary.
- Lab and Field Instrumentation: Ideal for laboratory and field instruments that require precise and stable voltage references.
Q & A
- What are the key grades of the REF5020IDR?
The REF5020IDR is available in enhanced, high, and standard grades, each offering different levels of precision and performance.
- What is the temperature drift of the enhanced grade REF5020IDR?
The enhanced grade has a temperature drift of 2.5 ppm/°C.
- What is the initial accuracy of the high grade REF5020IDR?
The high grade has an initial accuracy of 0.05%.
- How much noise does the enhanced grade REF5020IDR produce?
The enhanced grade produces 0.5 µVPP/V of noise.
- What is the long-term stability of the REF5020IDR in SOIC-8 packages?
The long-term stability is 22 ppm after the first 1000 hours for SOIC-8 packages.
- What is the maximum output current of the REF5020IDR?
The maximum output current is ±10 mA.
- What is the temperature range of the REF5020IDR?
The temperature range is -40°C to 125°C.
- In what packages is the REF5020IDR available?
The REF5020IDR is available in 8-pin SOIC and VSSOP packages.
- What are some typical applications of the REF5020IDR?
Typical applications include precision data acquisition systems, semiconductor test equipment, industrial process controls, medical instrumentation, and lab and field instrumentation.
- How does the REF5020IDR handle input voltage?
The enhanced grade supports input voltages up to 42 V, while the high and standard grades support up to 18 V.
