Overview
The REF3450TIDBVR is a part of the REF34xx family of low-noise, precision bandgap voltage references produced by Texas Instruments. These devices are designed for excellent initial voltage accuracy and minimal drift over temperature. The REF3450TIDBVR is specifically tailored for applications requiring high precision and stability in voltage reference.
The device features an extremely low dropout voltage, making it suitable for a wide range of applications where power efficiency and precision are critical. It operates within a broad temperature range and offers low quiescent current, making it an ideal choice for various industrial and consumer electronics.
Key Specifications
| Parameter | Test Condition | Min | Max | Unit | |
|---|---|---|---|---|---|
| Output Voltage Accuracy | TA = 25°C | -0.05 | - | 0.05 | % |
| Temperature Coefficient | -40°C ≤ TA ≤ 125°C | 2.5 | - | 6 | ppm/°C |
| Operating Temperature Range | - | -40 | - | 125 | °C |
| Output Current | - | -10 | - | 10 | mA |
| Quiescent Current | Active mode | 72 | - | 95 | µA |
| Dropout Voltage | IL = 0 mA | 50 | - | 100 | mV |
| Input Voltage | - | - | - | 12 | V |
| Output 1/f Noise (0.1 Hz to 10 Hz) | - | - | - | 3.8 | µVp-p/V |
| Long-term Stability | 25 ppm/1000 hrs | - | - | - | - |
Key Features
- High Precision: Initial accuracy of ±0.05% and a temperature coefficient of 6 ppm/°C.
- Low Dropout Voltage: Ultra-low zero load dropout voltage of 100 mV.
- Low Quiescent Current: Maximum quiescent current of 95 µA in active mode.
- Broad Operating Temperature Range: Operates from -40°C to 125°C.
- High Output Current Capability: Can source or sink up to ±10 mA.
- Low Noise: Output 1/f noise of 3.8 µVp-p/V from 0.1 Hz to 10 Hz.
- Long-term Stability: Excellent long-term stability of 25 ppm/1000 hours.
- Compact Package: Available in a small footprint 6-pin SOT-23 package.
Applications
- Data Acquisition Systems: Ideal for precision voltage referencing in data acquisition systems.
- Analog I/O Modules: Suitable for analog input/output modules requiring stable voltage references.
- Field Transmitters: Used in field transmitters for accurate voltage referencing.
- Lab & Field Instrumentation: Applicable in laboratory and field instrumentation for precise measurements.
- Servo Drive Control Modules: Employed in servo drive control modules for stable voltage references.
- DC Power Supply, AC Source, Electronic Load: Used in various power supply and electronic load applications.
Q & A
- What is the initial accuracy of the REF3450TIDBVR?
The initial accuracy of the REF3450TIDBVR is ±0.05% at 25°C.
- What is the temperature coefficient of the REF3450TIDBVR?
The temperature coefficient is 6 ppm/°C over the operating temperature range of -40°C to 125°C.
- What is the maximum output current of the REF3450TIDBVR?
The device can source or sink up to ±10 mA.
- What is the quiescent current of the REF3450TIDBVR in active mode?
The quiescent current in active mode is a maximum of 95 µA.
- What is the dropout voltage of the REF3450TIDBVR?
The dropout voltage is 100 mV at zero load and up to 500 mV at 10 mA load.
- What is the output noise of the REF3450TIDBVR?
The output 1/f noise is 3.8 µVp-p/V from 0.1 Hz to 10 Hz.
- What is the long-term stability of the REF3450TIDBVR?
The long-term stability is 25 ppm/1000 hours.
- In what package is the REF3450TIDBVR available?
The device is available in a 6-pin SOT-23 package.
- What are some typical applications of the REF3450TIDBVR?
Typical applications include data acquisition systems, analog I/O modules, field transmitters, lab and field instrumentation, and servo drive control modules.
- What is the operating temperature range of the REF3450TIDBVR?
The operating temperature range is from -40°C to 125°C.
