Overview
The REF5040IDG4, 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 REF5040IDG4 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 temperature drift.
Key Specifications
| Parameter | Value | Notes |
|---|---|---|
| Package | 8-SOIC (0.154", 3.90mm Width) | |
| Operating Temperature Range | -40°C to 125°C | |
| Output Voltage | 4.096V | Fixed |
| Output Current | ±10mA | |
| Tolerance | ±0.05% (High-grade) | Enhanced-grade: ±0.025%, Standard-grade: ±0.1% |
| Temperature Coefficient | 3ppm/°C (High-grade) | Enhanced-grade: 2.5ppm/°C, Standard-grade: 8ppm/°C |
| Noise (0.1Hz to 10Hz) | 3µVp-p (High/Standard-grade) | Enhanced-grade: 0.5µVPP/V |
| Input Voltage Range | 4.296 V ~ 18 V (High/Standard-grade) | Enhanced-grade: Up to 42V |
| Supply Current | 1.2mA | |
| Mounting Type | Surface Mount |
Key Features
- Low Temperature Drift: Maximum of 2.5ppm/°C for enhanced-grade, 3ppm/°C for high-grade, and 8ppm/°C for standard-grade.
- High Accuracy: Up to 0.025% for enhanced-grade, 0.05% for high-grade, and 0.1% for standard-grade.
- Low Noise: As low as 0.5µVPP/V for enhanced-grade and 3µVPP/V for high and standard grades.
- Excellent Long-term Stability: 22ppm after the first 1000 hours for SOIC-8 and 50ppm for VSSOP-8.
- Wide Input Voltage Support: Up to 42V for enhanced-grade and up to 18V for high and standard grades.
- High Output Current: ±10mA.
- Wide Operating Temperature Range: -40°C to 125°C.
Applications
The REF5040IDG4 is particularly suited for high-precision data acquisition systems, precision instrumentation, and any application requiring stable and accurate voltage references. Its low noise and drift characteristics make it ideal for use in analog-to-digital converters, digital-to-analog converters, and other precision analog circuits.
Q & A
- What is the output voltage of the REF5040IDG4?
The output voltage of the REF5040IDG4 is 4.096V.
- What are the different grades available for the REF5040IDG4?
The REF5040IDG4 is available in enhanced-grade (REF50xxEI), high-grade (REF50xxI), and standard-grade (REF50xxAI).
- What is the temperature coefficient of the REF5040IDG4?
The temperature coefficient varies by grade: 2.5ppm/°C for enhanced-grade, 3ppm/°C for high-grade, and 8ppm/°C for standard-grade.
- What is the maximum output current of the REF5040IDG4?
The maximum output current is ±10mA.
- What is the operating temperature range of the REF5040IDG4?
The operating temperature range is -40°C to 125°C.
- What package types are available for the REF5040IDG4?
The REF5040IDG4 is available in 8-pin SOIC and VSSOP packages.
- What is the noise level of the REF5040IDG4?
The noise level is as low as 0.5µVPP/V for enhanced-grade and 3µVPP/V for high and standard grades.
- Can the REF5040IDG4 be used in high-precision data acquisition systems?
Yes, it is particularly suited for high-precision data acquisition systems due to its low noise and drift characteristics.
- What is the input voltage range for the REF5040IDG4?
The input voltage range is up to 42V for enhanced-grade and up to 18V for high and standard grades.
- Is the REF5040IDG4 RoHS compliant?
Yes, the REF5040IDG4 is RoHS compliant.
