Overview
The REF5040AIDR is a high-precision voltage reference from Texas Instruments, part of the REF50xx family. This device is renowned for its low noise, low drift, and high accuracy, making it an excellent choice for high-precision data acquisition systems. The REF5040AIDR is capable of both sinking and sourcing current and features excellent line and load regulation. It is available in various grades, including enhanced, high, and standard grades, each offering different levels of precision and performance.
Key Specifications
| Parameter | Enhanced Grade | High Grade | Standard Grade |
|---|---|---|---|
| Temperature Drift (maximum) | 2.5 ppm/°C | 3 ppm/°C | 8 ppm/°C |
| High Accuracy (maximum) | 0.025% | 0.05% | 0.1% |
| Low Noise | 0.5 µVPP/V | 3 µVPP/V | 3 µVPP/V |
| Long-term Stability | 22 ppm after first 1000 hours (SOIC-8) | 22 ppm after first 1000 hours (SOIC-8) | 50 ppm after first 1000 hours (VSSOP-8) |
| Input Voltage Support | Up to 42V | Up to 18V | Up to 18V |
| Output Current | ±10 mA | ±10 mA | ±10 mA |
| Operating Temperature Range | -40°C to 125°C | -40°C to 125°C | -40°C to 125°C |
| Package | 8-pin SOIC, VSSOP | 8-pin SOIC, VSSOP | 8-pin SOIC, VSSOP |
Key Features
- Low temperature drift and high accuracy, making it suitable for high-precision applications.
- Low noise levels, with the enhanced grade offering 0.5 µVPP/V.
- Excellent long-term stability, with minimal drift over time.
- Wide input voltage support, with the enhanced grade capable of handling up to 42V.
- High-output current capability of ±10 mA.
- Operates over a wide temperature range of -40°C to 125°C.
- Available in 8-pin SOIC and VSSOP packages.
- Capable of both sinking and sourcing current with excellent line and load regulation.
- A temperature monitoring pin provides a temperature-dependent output voltage.
Applications
- Precision data acquisition systems.
- Semiconductor test equipment.
- Industrial process controls.
- Medical instrumentation.
- Pressure and temperature transmitters.
- Lab and field instrumentation.
Q & A
- What is the REF5040AIDR used for?
The REF5040AIDR is used in high-precision applications such as data acquisition systems, semiconductor test equipment, and medical instrumentation due to its low noise, low drift, and high accuracy.
- What are the different grades of the REF5040AIDR?
The REF5040AIDR is available in enhanced, high, and standard grades, each offering different levels of precision and performance.
- What is the temperature drift of the REF5040AIDR?
The temperature drift varies by grade: 2.5 ppm/°C for enhanced grade, 3 ppm/°C for high grade, and 8 ppm/°C for standard grade.
- What is the noise level of the REF5040AIDR?
The noise level is 0.5 µVPP/V for the enhanced grade and 3 µVPP/V for the high and standard grades.
- What is the long-term stability of the REF5040AIDR?
The long-term stability is 22 ppm after the first 1000 hours for SOIC-8 packages and 50 ppm for VSSOP-8 packages.
- What is the input voltage range for the REF5040AIDR?
The input voltage range is up to 42V for the enhanced grade and up to 18V for the high and standard grades.
- What is the output current capability of the REF5040AIDR?
The output current capability is ±10 mA.
- What is the operating temperature range of the REF5040AIDR?
The operating temperature range is -40°C to 125°C.
- In what packages is the REF5040AIDR available?
The REF5040AIDR is available in 8-pin SOIC and VSSOP packages.
- Does the REF5040AIDR have a temperature monitoring feature?
Yes, the REF5040AIDR has a temperature monitoring pin that provides a temperature-dependent output voltage.
