Overview
The REF3440IDBVR is a high-precision, low-power voltage reference component manufactured by Texas Instruments. Designed for applications requiring stable and accurate voltage references, this model is part of the REF34xx series, known for its low temperature drift and compact form factor. It is widely used in data acquisition systems, analog I/O modules, and precision instrumentation, targeting industries such as industrial automation, automotive electronics, and laboratory equipment. Its unique selling points include exceptional initial accuracy, low power consumption, and a wide operating temperature range, making it a competitive choice for demanding applications.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Initial Accuracy | ±0.05% | Max | |
| Temperature Coefficient | 6 | ppm/°C | Max |
| Operating Temperature Range | -40 to +125 | °C | |
| Output Current | ±10 | mA | |
| Quiescent Current | 95 | µA | Max |
| Dropout Voltage | 100 | mV | Max |
| Input Voltage Range | Up to 12 | V | |
| Noise (0.1Hz to 10Hz) | 3.8 | µV PP/V | |
| Long-Term Stability | 25 | ppm/1000 hours | |
| Package | SOT-23 | 6-pin |
Key Features
- High initial accuracy of ±0.05% ensures precise voltage references.
- Low temperature coefficient of 6ppm/°C guarantees stability across varying temperatures.
- Ultra-low quiescent current of 95µA maximizes power efficiency.
- Wide operating temperature range of -40°C to +125°C suits harsh environments.
- Compact SOT-23 package enables space-constrained designs.
Applications
The REF3440IDBVR is ideal for a variety of precision applications, including data acquisition systems, analog I/O modules, and field transmitters. It is also well-suited for laboratory and industrial instrumentation, servo drive control modules, and power supplies. Its high accuracy and stability make it a reliable choice for voltage references in data converters, ensuring consistent performance in critical systems.
Q & A
1. What is the initial accuracy of the REF3440IDBVR?
The initial accuracy is ±0.05% maximum.
2. What is the temperature coefficient of this component?
The temperature coefficient is 6ppm/°C maximum.
3. What is the operating temperature range?
It operates from -40°C to +125°C.
4. What is the maximum quiescent current?
The maximum quiescent current is 95µA.
5. What package does the REF3440IDBVR use?
It comes in a 6-pin SOT-23 package.
6. What is the maximum dropout voltage?
The maximum dropout voltage is 100mV.
7. What is the input voltage range?
The input voltage range is up to 12V.
8. What is the noise performance of this component?
The noise is 3.8µV PP/V from 0.1Hz to 10Hz.
9. What is the long-term stability?
The long-term stability is 25ppm over 1000 hours.
10. What are typical applications for the REF3440IDBVR?
Typical applications include data acquisition systems, analog I/O modules, and precision instrumentation.
