Overview
The REF3425QDBVRQ1, produced by Texas Instruments, is an automotive-grade, low-drift, low-power, and small-footprint series voltage reference. This device is part of the REF34-Q1 family and is designed to provide high precision and stability in various applications. It is AEC-Q100 qualified, ensuring it meets stringent automotive standards for temperature and ESD robustness.
Key Specifications
| Parameter | Value |
|---|---|
| Initial Accuracy | ±0.05% (maximum) |
| Temperature Coefficient | 6 ppm/°C (maximum) |
| Operating Temperature Range | −40°C to +125°C |
| Output Voltage Options | 2.5V, 3.0V, 3.3V, 4.096V, 5.0V |
| Output Current | ±10 mA |
| Quiescent Current | 95 µA (maximum) |
| Shutdown Mode Current | 3 µA (maximum) |
| Input Voltage | Up to 12 V |
| Output 1/f Noise (0.1 Hz to 10 Hz) | 3.8 µV PP/V |
| Long-term Stability | 25 ppm/1000 hrs |
| Package Options | 6-pin and 5-pin SOT-23, 8-pin MSOP |
Key Features
- High precision with ±0.05% initial accuracy and 6 ppm/°C temperature coefficient.
- Low power consumption with a quiescent current of 95 µA and a shutdown mode current of 3 µA.
- Low output noise of 3.8 µV PP/V, ensuring high signal integrity in noise-critical systems.
- Excellent long-term stability of 25 ppm/1000 hrs.
- AEC-Q100 qualified for automotive applications with a wide operating temperature range of −40°C to +125°C.
- Available in compact 6-pin and 5-pin SOT-23 and 8-pin MSOP packages.
- Enable pin for shutdown mode to reduce power consumption during standby.
Applications
The REF3425QDBVRQ1 is suitable for a variety of applications, including:
- Battery-powered devices due to its low power consumption and small footprint.
- High-resolution data converters and noise-critical systems where low output noise is crucial.
- Automotive systems requiring high precision and reliability over a wide temperature range.
- Industrial and medical devices that demand stable voltage references.
Q & A
- What is the initial accuracy of the REF3425QDBVRQ1?
The initial accuracy is ±0.05% (maximum). - What is the temperature coefficient of the REF3425QDBVRQ1?
The temperature coefficient is 6 ppm/°C (maximum). - What is the operating temperature range of the REF3425QDBVRQ1?
The operating temperature range is −40°C to +125°C. - What are the available output voltage options for the REF3425QDBVRQ1?
The output voltage options are 2.5V, 3.0V, 3.3V, 4.096V, and 5.0V. - What is the maximum output current of the REF3425QDBVRQ1?
The maximum output current is ±10 mA. - How much quiescent current does the REF3425QDBVRQ1 consume?
The quiescent current is 95 µA (maximum). - What is the shutdown mode current of the REF3425QDBVRQ1?
The shutdown mode current is 3 µA (maximum). - What is the input voltage range for the REF3425QDBVRQ1?
The input voltage can go up to 12 V. - What is the output 1/f noise of the REF3425QDBVRQ1?
The output 1/f noise is 3.8 µV PP/V. - What is the long-term stability of the REF3425QDBVRQ1?
The long-term stability is 25 ppm/1000 hrs.
