Overview
The REF3433TIDBVR, produced by Texas Instruments, is a high-precision, low-drift, and low-power voltage reference device. It is part of the REF34xx family, which is designed for excellent initial voltage accuracy and minimal drift. This device is particularly suited for applications requiring high signal integrity and low noise, making it ideal for use in noise-critical systems and high-resolution data converters.
Key Specifications
| Parameter | Minimum | Typical | Maximum | Unit |
|---|---|---|---|---|
| Initial Accuracy | - | - | ±0.05% | % |
| Temperature Coefficient | - | - | 6 ppm/°C | ppm/°C |
| Operating Temperature Range | -40°C | - | 125°C | °C |
| Output Current | -10 mA | - | 10 mA | mA |
| Quiescent Current | - | 72 µA | 95 µA | µA |
| Dropout Voltage (Zero Load) | - | - | 100 mV | mV |
| Input Voltage | - | - | 12 V | V |
| Output 1/f Noise (0.1 Hz to 10 Hz) | - | - | 3.8 µVp-p/V | µVp-p/V |
| Long-term Stability | - | - | 25 ppm/1000 hrs | ppm/1000 hrs |
| Package | - | - | 6-pin SOT-23 | - |
| Output Voltage | - | - | 3.3 V | V |
Key Features
- High precision with initial accuracy of ±0.05% and a temperature coefficient of 6 ppm/°C.
- Low quiescent current of 95 µA, making it suitable for battery-powered and portable applications.
- Ultra-low zero load dropout voltage of 100 mV, ensuring efficient operation.
- Wide input voltage range up to 12 V.
- Low output noise of 3.8 µVp-p/V in the 0.1 Hz to 10 Hz frequency range, enhancing signal integrity.
- Excellent long-term stability with a drift of 25 ppm over 1000 hours.
- Compact 6-pin SOT-23 package, ideal for space-constrained designs.
- Enable pin for easy shutdown and power management.
Applications
- Data acquisition systems.
- Analog I/O modules.
- Field transmitters.
- Lab and field instrumentation.
- Servo drive control modules.
- DC power supplies, AC sources, and electronic loads.
Q & A
- What is the initial accuracy of the REF3433TIDBVR?
The initial accuracy of the REF3433TIDBVR is ±0.05%.
- What is the temperature coefficient of the REF3433TIDBVR?
The temperature coefficient is 6 ppm/°C.
- What is the operating temperature range of the REF3433TIDBVR?
The operating temperature range is from -40°C to +125°C.
- What is the maximum output current of the REF3433TIDBVR?
The maximum output current is ±10 mA.
- What is the quiescent current of the REF3433TIDBVR?
The quiescent current is 95 µA (maximum).
- What is the dropout voltage of the REF3433TIDBVR at zero load?
The dropout voltage at zero load is 100 mV (maximum).
- What is the input voltage range of the REF3433TIDBVR?
The input voltage range is up to 12 V.
- What is the output noise of the REF3433TIDBVR in the 0.1 Hz to 10 Hz frequency range?
The output noise is 3.8 µVp-p/V.
- What is the long-term stability of the REF3433TIDBVR?
The long-term stability is 25 ppm over 1000 hours.
- In what package is the REF3433TIDBVR available?
The REF3433TIDBVR is available in a 6-pin SOT-23 package.
