Overview
The REF4132A33DBVR from Texas Instruments is a high-precision, low-noise, and low-power voltage reference IC. This device is part of the REF4132 family, which is designed to offer excellent initial voltage accuracy and minimal temperature drift. The REF4132A33DBVR is specifically configured to provide a fixed output voltage of 3.3V with an initial accuracy of ±0.05%. It is packaged in a small 5-pin SOT-23 footprint, making it suitable for a wide range of applications, including data acquisition, field transmitters, and battery test equipment.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Output Voltage | 3.3 | V |
| Initial Accuracy | ±0.05% | % |
| Temperature Coefficient | 12 ppm/°C (A grade), 30 ppm/°C (B grade) | ppm/°C |
| Operating Temperature Range | −40°C to +125°C | °C |
| Output Current | ±10 mA | mA |
| Quiescent Current | 100 µA (maximum) | µA |
| Output 1/f Noise (0.1 Hz to 10 Hz) | 15 µVPP/V | µVPP/V |
| Dropout Voltage | 50 mV (typical at IL = 0 mA) | mV |
| Package | 5-pin SOT-23 |
Key Features
- High precision with initial accuracy of ±0.05%
- Low temperature coefficient: 12 ppm/°C (A grade) and 30 ppm/°C (B grade)
- Low quiescent current of 100 µA (maximum)
- Low output noise of 15 µVPP/V in the 0.1 Hz to 10 Hz frequency range
- Excellent long-term stability with 30 ppm/1000 hours
- Small footprint in a 5-pin SOT-23 package
- Enable pin for shutdown mode, reducing quiescent current to 2.5 µA
- Capable of sourcing and sinking up to 10 mA of load current
Applications
- Data acquisition (DAQ) systems
- PLC analog I/O modules
- Field transmitters
- Motor drive control modules
- Battery test equipment
- LCR meters
- Display test equipment
- Video surveillance - thermal cameras
- Medical devices such as blood glucose meters
Q & A
- What is the output voltage of the REF4132A33DBVR?
The output voltage of the REF4132A33DBVR is 3.3V.
- What is the initial accuracy of the REF4132A33DBVR?
The initial accuracy is ±0.05%.
- What is the temperature coefficient of the REF4132A33DBVR?
The temperature coefficient is 12 ppm/°C for the A grade and 30 ppm/°C for the B grade.
- What is the operating temperature range of the REF4132A33DBVR?
The operating temperature range is −40°C to +125°C.
- How much output current can the REF4132A33DBVR handle?
The device can source and sink up to 10 mA of load current.
- What is the quiescent current of the REF4132A33DBVR?
The quiescent current is 100 µA (maximum).
- What is the output noise of the REF4132A33DBVR in the 0.1 Hz to 10 Hz range?
The output noise is 15 µVPP/V.
- Can the REF4132A33DBVR be put into a shutdown mode?
- What package type is the REF4132A33DBVR available in?
The device is packaged in a 5-pin SOT-23 footprint.
- What are some typical applications of the REF4132A33DBVR?
Typical applications include data acquisition systems, field transmitters, battery test equipment, and medical devices.
