Overview
The REF4132A33DBVRQ1 is a high-precision, low-power voltage reference from Texas Instruments, designed for automotive and other critical applications requiring high reliability and performance. This device is part of TI's automotive-grade product line and is AEC-Q100 qualified, ensuring it meets stringent automotive standards. It features a low temperature drift of 12 ppm/°C, low operating current, and very low output noise, making it ideal for maintaining high signal integrity in noise-critical systems.
The REF4132A33DBVRQ1 is packaged in a small 5-pin SOT-23 package, which is beneficial for space-constrained and battery-powered applications. Its robust design and wide operating temperature range of −40°C to +125°C make it suitable for a variety of harsh environments.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package | SOT-23 (DBV) | - |
| Pins | 5 | - |
| Operating Temperature Range | −40 to +125 | °C |
| Output Voltage Options | 2.5V, 3V, 3.3V, 4.096V, 5V | V |
| Initial Accuracy | ±0.05% | - |
| Temperature Coefficient | 12 ppm/°C (A grade), 30 ppm/°C (B grade) | ppm/°C |
| Output Current | ±10 mA | mA |
| Quiescent Current | 100 µA (maximum) | µA |
| Output 1/f Noise (0.1 Hz to 10 Hz) | 15 µVp-p/V | µVp-p/V |
| Long-term Stability | 30 ppm/1000 hrs | ppm/1000 hrs |
| Dropout Voltage | 50 mV above output voltage | mV |
Key Features
- Qualified for automotive applications and AEC-Q100 certified.
- Low temperature drift of 12 ppm/°C (A grade) and 30 ppm/°C (B grade).
- High initial accuracy of ±0.05%.
- Low operating current of 100 µA (maximum).
- Very low output noise of 15 µVp-p/V.
- Excellent long-term stability of 30 ppm/1000 hrs.
- Small footprint in a 5-pin SOT-23 package.
- Low dropout voltage, allowing operation with a supply voltage just 50 mV above the output voltage.
- Output current capability of ±10 mA.
- Low quiescent current in shutdown mode (2.5 µA typical).
Applications
- Automotive systems, including ADAS front camera, ADAS surround view system ECU, traction inverter, and automotive DC/DC converters.
- HEV/EV On-board (OBC) and wireless chargers.
- Industrial control systems.
- Portable and battery-powered devices.
- Data acquisition systems, including high-resolution ADCs and DACs.
- High-temperature sensor applications.
- Automotive head units.
Q & A
- What is the operating temperature range of the REF4132A33DBVRQ1?
The operating temperature range is −40°C to +125°C.
- What are the available output voltage options for the REF4132A33DBVRQ1?
The available output voltage options are 2.5V, 3V, 3.3V, 4.096V, and 5V.
- What is the initial accuracy of the REF4132A33DBVRQ1?
The initial accuracy is ±0.05%.
- What is the temperature coefficient of the REF4132A33DBVRQ1?
The temperature coefficient is 12 ppm/°C (A grade) and 30 ppm/°C (B grade).
- How much output current can the REF4132A33DBVRQ1 deliver?
The device can deliver an output current of ±10 mA.
- What is the quiescent current of the REF4132A33DBVRQ1?
The quiescent current is 100 µA (maximum).
- What is the output noise of the REF4132A33DBVRQ1?
The output noise is 15 µVp-p/V in the 0.1 Hz to 10 Hz frequency range.
- What is the long-term stability of the REF4132A33DBVRQ1?
The long-term stability is 30 ppm/1000 hrs.
- What is the package type and pin count of the REF4132A33DBVRQ1?
The device is packaged in a 5-pin SOT-23 package.
- Can the REF4132A33DBVRQ1 be used in battery-powered applications?
Yes, the device is suitable for battery-powered applications due to its low quiescent current and small footprint.
