Overview
The REF5045AIDR from Texas Instruments is a member of the REF50xx family, which are low-noise, low-drift, very high precision voltage references. These devices are designed to provide high accuracy and stability, making them ideal for high-precision data acquisition systems. The REF5045AIDR is available in various grades, including enhanced, high, and standard grades, each offering different levels of precision and noise performance. The device can operate over a wide temperature range from -40°C to 125°C and is packaged in 8-pin SOIC and VSSOP configurations.
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 |
| Temperature Range | -40°C to 125°C | -40°C to 125°C | -40°C to 125°C |
| Package | 8-pin SOIC, 8-pin VSSOP | 8-pin SOIC, 8-pin VSSOP | 8-pin SOIC, 8-pin VSSOP |
Key Features
- Low temperature drift and high accuracy, achieved using proprietary design techniques.
- Very low flicker noise, making it suitable for high-precision applications.
- Excellent long-term stability with minimal drift over time.
- Wide input voltage support, allowing direct connection to batteries or field supplies.
- High-output current capability of ±10 mA.
- Excellent line and load regulation.
- Temperature range of -40°C to 125°C.
- Available in enhanced, high, and standard grades to meet different precision requirements.
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 temperature drift of the REF5045AIDR in enhanced grade?
The temperature drift of the REF5045AIDR in enhanced grade is 2.5 ppm/°C.
- What is the maximum output current of the REF5045AIDR?
The maximum output current of the REF5045AIDR is ±10 mA.
- What are the available package types for the REF5045AIDR?
The REF5045AIDR is available in 8-pin SOIC and 8-pin VSSOP packages.
- What is the operating temperature range of the REF5045AIDR?
The operating temperature range of the REF5045AIDR is -40°C to 125°C.
- What is the noise performance of the REF5045AIDR in enhanced grade?
The noise performance of the REF5045AIDR in enhanced grade is 0.5 µVPP/V.
- Can the REF5045AIDR be used in high-precision data acquisition systems?
Yes, the REF5045AIDR is designed for use in high-precision data acquisition systems due to its low noise and high accuracy.
- What is the long-term stability of the REF5045AIDR?
The long-term stability of the REF5045AIDR is 22 ppm after the first 1000 hours for SOIC-8 packages and 50 ppm for VSSOP-8 packages.
- Can the REF5045AIDR be directly connected to a battery or field supply?
Yes, the REF5045AIDR supports a wide input voltage range, allowing direct connection to batteries or field supplies.
- What are some common applications of the REF5045AIDR?
Common applications include precision data acquisition systems, semiconductor test equipment, industrial process controls, medical instrumentation, and lab and field instrumentation.
- How does the REF5045AIDR protect against power supply IC failure?
The wide supply voltage range of the REF5045AIDR helps protect the device in case of power supply IC failure.
