Overview
The REF4132B33DBVR is a high-precision, low-power voltage reference device manufactured by Texas Instruments. This CMOS voltage reference is known for its low temperature drift of 12 ppm/°C, making it suitable for applications requiring high stability and accuracy. The device features an initial accuracy of ±0.05% and operates within a wide temperature range of −40°C to +125°C. It is packaged in a small 5-pin SOT-23 (DBV) package, which is beneficial for space-constrained and battery-powered applications.
Key Specifications
| Parameter | Value |
|---|---|
| Package | SOT-23 (DBV), 5 pins |
| Operating Temperature Range | −40°C to +125°C |
| Voltage Options | 2.5V, 3V, 3.3V, 4.096V, 5V |
| Initial Accuracy | ±0.05% (maximum) |
| Temperature Coefficient | A grade: 12 ppm/°C (maximum), B grade: 30 ppm/°C (maximum) |
| Output Current | ±10 mA |
| Quiescent Current | 100 µA (maximum) |
| Output 1/f Noise (0.1 Hz to 10 Hz) | 15 µV p-p/V |
| Long-term Stability | 30 ppm/1000 hrs |
Key Features
- Low temperature drift of 12 ppm/°C for high stability.
- Initial accuracy of ±0.05% for precise voltage reference.
- Low operating current of 100 µA, suitable for battery-powered applications.
- Very low output noise of 15 µV p-p/V, ensuring high signal integrity.
- Wide operating temperature range of −40°C to +125°C.
- Small footprint 5-pin SOT-23 package for space-constrained designs.
- Excellent long-term stability of 30 ppm/1000 hrs.
- Pin-to-pin replacement for LM4128 and LM4132.
Applications
The REF4132B33DBVR is ideal for various applications requiring high precision and low noise, including:
- High-resolution data converters in noise-critical systems.
- Portable and battery-powered devices due to its low power consumption.
- Industrial and automotive systems that require stable voltage references over a wide temperature range.
- Medical devices and instrumentation where precision and stability are crucial.
Q & A
- What is the temperature drift of the REF4132B33DBVR?
The temperature drift of the REF4132B33DBVR is 12 ppm/°C for the A grade and 30 ppm/°C for the B grade. - What is the initial accuracy of the REF4132B33DBVR?
The initial accuracy is ±0.05%. - What is the operating temperature range of the REF4132B33DBVR?
The operating temperature range is −40°C to +125°C. - What is the maximum output current of the REF4132B33DBVR?
The maximum output current is ±10 mA. - What is the quiescent current of the REF4132B33DBVR?
The quiescent current is 100 µA (maximum). - What is the output 1/f noise of the REF4132B33DBVR?
The output 1/f noise is 15 µV p-p/V from 0.1 Hz to 10 Hz. - What is the long-term stability of the REF4132B33DBVR?
The long-term stability is 30 ppm/1000 hrs. - In what package is the REF4132B33DBVR available?
The REF4132B33DBVR is available in a 5-pin SOT-23 (DBV) package. - Can the REF4132B33DBVR replace other voltage reference devices?
Yes, it offers pin-to-pin replacement for LM4128 and LM4132. - What are some typical applications of the REF4132B33DBVR?
Typical applications include high-resolution data converters, portable and battery-powered devices, industrial and automotive systems, and medical devices.
