Overview
The REF5045IDGKR, produced by Texas Instruments, is part of the REF50xx family of low-noise, low-drift, very high precision voltage references. These voltage references are designed to provide high accuracy and stability, making them ideal for use in high-precision data acquisition systems. The REF5045IDGKR is capable of both sinking and sourcing current and features excellent line and load regulation. It is available in enhanced, high, and standard grades, each offering different levels of precision and noise performance.
Key Specifications
| Parameter | Enhanced Grade | High Grade | Standard Grade |
|---|---|---|---|
| Output Voltage (V) | 4.5 V | 4.5 V | 4.5 V |
| Temperature Drift (ppm/°C) | 2.5 | 3 | 8 |
| Initial Accuracy (%) | ±0.025% | ±0.05% | ±0.1% |
| Noise (µVPP/V) | 0.5 | 3 | 3 |
| Long-term Stability (ppm after 1000 hours) | 22 (SOIC-8), 50 (VSSOP-8) | 45 (Typ) | 45 (Typ) |
| Input Voltage Range (V) | Up to 42 V | Up to 18 V | Up to 18 V |
| Output Current (mA) | ±10 | ±10 | ±10 |
| Operating Temperature Range (°C) | -40 to 125 | -40 to 125 | -40 to 125 |
| Package Type | VSSOP (8-pin) | VSSOP (8-pin) | VSSOP (8-pin) |
Key Features
- Low temperature drift: 2.5 ppm/°C (enhanced grade), 3 ppm/°C (high grade), and 8 ppm/°C (standard grade)
- High accuracy: ±0.025% (enhanced grade), ±0.05% (high grade), and ±0.1% (standard grade)
- Low noise: 0.5 µVPP/V (enhanced grade), 3 µVPP/V (high and standard grades)
- Excellent long-term stability: 22 ppm after first 1000 hours (SOIC-8), 50 ppm after first 1000 hours (VSSOP-8)
- Wide input voltage support: up to 42 V (enhanced grade), up to 18 V (high and standard grades)
- High-output current: ±10 mA
- Temperature range: -40°C to 125°C
- Capable of both sinking and sourcing current with excellent line and load regulation
Applications
- Precision data acquisition systems
- ATE (Automated Test Equipment)
- Industrial process controls
- Medical instrumentation
- Pressure and temperature transmitters
- Seismic monitoring systems
Q & A
- What is the output voltage of the REF5045IDGKR?
The output voltage of the REF5045IDGKR is 4.5 V.
- What are the different grades available for the REF5045IDGKR?
The REF5045IDGKR is available in enhanced, high, and standard grades.
- What is the temperature drift for the enhanced grade of the REF5045IDGKR?
The temperature drift for the enhanced grade is 2.5 ppm/°C.
- What is the noise level for the enhanced grade of the REF5045IDGKR?
The noise level for the enhanced grade is 0.5 µVPP/V.
- What is the maximum output current of the REF5045IDGKR?
The maximum output current is ±10 mA.
- What is the operating temperature range of the REF5045IDGKR?
The operating temperature range is -40°C to 125°C.
- In what package types is the REF5045IDGKR available?
The REF5045IDGKR is available in 8-pin VSSOP and SOIC packages.
- What are some typical applications for the REF5045IDGKR?
Typical applications include precision data acquisition systems, ATE equipment, industrial process controls, medical instrumentation, pressure and temperature transmitters, and seismic monitoring systems.
- How does the REF5045IDGKR handle long-term stability?
The REF5045IDGKR exhibits excellent long-term stability with 22 ppm after the first 1000 hours for SOIC-8 and 50 ppm for VSSOP-8.
- Can the REF5045IDGKR be directly connected to a battery or field supply?
Yes, the enhanced grade supports a wide supply voltage range of up to 42 V, allowing for direct connection to a battery or field supply.
