Overview
The REF3450IDBVR from Texas Instruments is a 5-V, low-drift, low-power, small-footprint series voltage reference. This component is part of the REF34xx family, known for its excellent initial voltage accuracy and drift. It is designed to operate with an extremely low dropout voltage, making it suitable for a wide range of applications requiring precise voltage referencing.
Key Specifications
| Attribute | Value |
|---|---|
| Initial Accuracy | ±0.05% (maximum) |
| Temperature Coefficient | 6 ppm/°C (maximum) |
| Operating Temperature Range | −40°C to +125°C |
| Output Current | ±10 mA |
| Quiescent Current | 95 µA (maximum) |
| Dropout Voltage | 100 mV (maximum at zero load) |
| Input Voltage | Up to 12 V |
| Output Voltage Noise (0.1 Hz to 10 Hz) | 3.8 µVp-p/V |
| Output Voltage Noise (10 Hz to 10 kHz) | 24 µVrms |
| Package Type | SOT-23-6 |
| Mounting Type | SMD, glue mount |
Key Features
- High initial accuracy of ±0.05% and a low temperature coefficient of 6 ppm/°C, ensuring stable output voltage across a wide temperature range.
- Ultra-low dropout voltage of 100 mV, allowing operation with minimal input voltage overhead.
- Low quiescent current of 95 µA, making it power-efficient.
- Wide input voltage range up to 12 V and output current capacity of ±10 mA.
- Excellent long-term stability with a drift of 25 ppm over 1000 hours.
- Compact SOT-23-6 package, suitable 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 supply, AC source, and electronic load systems
Q & A
- What is the initial accuracy of the REF3450IDBVR?
The initial accuracy of the REF3450IDBVR is ±0.05% (maximum).
- What is the temperature coefficient of the REF3450IDBVR?
The temperature coefficient is 6 ppm/°C (maximum).
- What is the operating temperature range of the REF3450IDBVR?
The operating temperature range is −40°C to +125°C.
- What is the maximum output current of the REF3450IDBVR?
The maximum output current is ±10 mA.
- What is the quiescent current of the REF3450IDBVR?
The quiescent current is 95 µA (maximum).
- What is the dropout voltage of the REF3450IDBVR at zero load?
The dropout voltage at zero load is 100 mV (maximum).
- What is the input voltage range of the REF3450IDBVR?
The input voltage range is up to 12 V.
- What is the noise performance of the REF3450IDBVR in the 0.1 Hz to 10 Hz range?
The noise performance in the 0.1 Hz to 10 Hz range is 3.8 µVp-p/V.
- What package type does the REF3450IDBVR come in?
The REF3450IDBVR comes in a SOT-23-6 package.
- What are some typical applications of the REF3450IDBVR?
Typical applications include data acquisition systems, analog I/O modules, field transmitters, lab and field instrumentation, servo drive control modules, and DC power supply systems.
