Overview
The REF02AUE4, produced by Texas Instruments, is a precision 5V voltage reference IC. It is part of the REF02 series, known for its excellent temperature stability, low noise, and wide supply range. This component is ideal for applications requiring a stable voltage reference, such as precision regulators, digital voltmeters, and A/D and D/A converters. The REF02AUE4 operates from a single supply with an input range of 8V to 40V and features a low current drain, making it suitable for a variety of electronic systems.
Key Specifications
| Parameter | Conditions | MIN | TYP | MAX | Units |
|---|---|---|---|---|---|
| OUTPUT VOLTAGE | ILOAD = 0mA | 4.985 | 5.0 | 5.015 | V |
| OUTPUT VOLTAGE DRIFT | –40°C to +85°C (TCVO) | 4 | 10 | 15 | ±ppm/°C |
| LONG-TERM STABILITY | 2000h Test | 100 | 100 | 50 | ±ppm |
| OUTPUT ADJUSTMENT RANGE | RPOT = 10kΩ | ±3 | ±6 | % | |
| SUPPLY CURRENT | 1.4 | 1.4 | mA | ||
| SUPPLY RANGE | 8 | 40 | V | ||
| TEMPERATURE RANGE | –40 | +85 | °C | ||
| PACKAGE OPTIONS | DIP-8, SO-8 |
Key Features
- Output Voltage: +5V ±0.2% max
- Temperature Stability: 10ppm/°C max (–40°C to +85°C)
- Low Noise: 10µVPP max (0.1Hz to 10Hz)
- Line Regulation: 0.01%/V max
- Load Regulation: 0.008%/mA max
- Low Supply Current: 1.4mA max
- Short-Circuit Protected:
- Wide Supply Range: 8V to 40V
- Industrial Temperature Range: –40°C to +85°C
Applications
- Precision Regulators
- Constant Current Source/Sink
- Digital Voltmeters
- V/F Converters
- A/D and D/A Converters
- Precision Calibration Standard
- Test Equipment
Q & A
- What is the output voltage of the REF02AUE4?
The output voltage of the REF02AUE4 is +5V ±0.2% max. - What is the temperature stability of the REF02AUE4?
The temperature stability is 10ppm/°C max over the range of –40°C to +85°C. - What is the noise level of the REF02AUE4?
The noise level is 10µVPP max from 0.1Hz to 10Hz. - What is the supply current of the REF02AUE4?
The supply current is 1.4mA max. - What are the package options for the REF02AUE4?
The package options are DIP-8 and SO-8. - What is the industrial temperature range for the REF02AUE4?
The industrial temperature range is –40°C to +85°C. - Is the REF02AUE4 short-circuit protected?
Yes, the REF02AUE4 is short-circuit protected. - What are some common applications of the REF02AUE4?
Common applications include precision regulators, digital voltmeters, A/D and D/A converters, and test equipment. - Can the output voltage of the REF02AUE4 be adjusted?
Yes, the output voltage can be externally adjusted over a ±6% range with minimal effect on temperature stability. - What is the long-term stability of the REF02AUE4?
The long-term stability is ±100 ppm for the first 1000 hours and ±50 ppm for the second 1000 hours.
