Overview
The REF3433SQDBVRQ1 is a high-precision, low-drift, and low-power voltage reference device manufactured by Texas Instruments. It is part of the REF34-Q1 family, which is AEC-Q100 qualified, ensuring its suitability for automotive and other demanding applications. This device features a small footprint and is available in various package options, including 5-pin and 6-pin SOT-23 and 8-pin MSOP packages. The REF3433SQDBVRQ1 is designed to provide stable and accurate voltage references, making it ideal for systems requiring high signal integrity and low noise.
Key Specifications
| Specification | Value |
|---|---|
| Device Temperature Grade | –40°C to +125°C |
| HBM ESD Classification | Level 2 |
| CDM ESD Classification | Level C6 |
| 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 |
Key Features
- High precision with ±0.05% initial accuracy and 6 ppm/°C temperature coefficient.
- Low power consumption with a quiescent current of less than 95 µA and a shutdown mode current of 3 µA.
- Very low output noise of 3.8 µV PP/V, ensuring high signal integrity.
- Excellent long-term stability with 25 ppm/1000 hrs drift.
- Wide input voltage range up to 12 V.
- Enable pin for shutdown mode to reduce power consumption during standby.
- Available in small-footprint packages including 5-pin and 6-pin SOT-23 and 8-pin MSOP.
Applications
The REF3433SQDBVRQ1 is suitable for a variety of applications, including:
- Automotive systems requiring high reliability and temperature stability.
- Battery-powered devices where low power consumption is critical.
- High-resolution data converters and noise-critical systems.
- Industrial control systems and precision measurement instruments.
- Medical devices and other applications requiring stable and accurate voltage references.
Q & A
- What is the operating temperature range of the REF3433SQDBVRQ1?
The operating temperature range is –40°C to +125°C.
- What are the output voltage options for the REF3433SQDBVRQ1?
The output voltage options are 2.5V, 3.0V, 3.3V, 4.096V, and 5.0V.
- What is the maximum quiescent current of the REF3433SQDBVRQ1?
The maximum quiescent current is 95 µA.
- How much current does the REF3433SQDBVRQ1 consume in shutdown mode?
The device consumes 3 µA in shutdown mode.
- What is the input voltage range for the REF3433SQDBVRQ1?
The input voltage range is up to 12 V.
- What is the output 1/f noise of the REF3433SQDBVRQ1?
The output 1/f noise is 3.8 µV PP/V from 0.1 Hz to 10 Hz.
- What is the long-term stability of the REF3433SQDBVRQ1?
The long-term stability is 25 ppm/1000 hrs.
- Is the REF3433SQDBVRQ1 AEC-Q100 qualified?
- What package options are available for the REF3433SQDBVRQ1?
The device is available in 5-pin and 6-pin SOT-23 packages and an 8-pin MSOP package.
- Does the REF3433SQDBVRQ1 have an enable pin for shutdown mode?
