Overview
The REF3212AIDBVT is a precision voltage reference IC produced by Texas Instruments. It is part of the REF32xx family, known for its low drift, micropower, and low-dropout characteristics. This device is packaged in a compact SOT-23-6 package, making it ideal for space-constrained and battery-powered applications. The REF3212AIDBVT provides a stable 1.25V output voltage with high accuracy and low noise, ensuring reliable performance across a wide temperature range of –40°C to +125°C.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Output Voltage | 1.2475 - 1.2525 | V |
| Initial Accuracy | ±0.01% | % |
| Temperature Coefficient | 4 ppm/°C (0°C to +125°C), 20 ppm/°C (–40°C to +125°C) | ppm/°C |
| Output Current | ±10 mA | mA |
| Quiescent Current | 100 µA | µA |
| Dropout Voltage | 5 mV | mV |
| Noise (0.1 Hz to 10 Hz) | 17 µVpp | µVpp |
| Noise (10 Hz to 10 kHz) | 24 µVrms | µVrms |
| Input Voltage Range | 1.8 V to 5.5 V | V |
| Operating Temperature Range | –40°C to +125°C | °C |
| Package Type | SOT-23-6 |
Key Features
- Excellent Specified Drift Performance: 4 ppm/°C (max) at 0°C to +125°C and 20 ppm/°C (max) at –40°C to +125°C.
- Microsize Package: Compact SOT23-6 package suitable for space-constrained applications.
- High Output Current: Capable of sourcing and sinking up to ±10 mA.
- High Accuracy: Initial accuracy of ±0.01%.
- Low Quiescent Current: Only 100 µA, making it ideal for battery-powered devices.
- Low Dropout: Can operate with a supply voltage as low as 5 mV above the output voltage.
- Stable with Capacitive Load: The device remains stable with any capacitive load.
Applications
The REF3212AIDBVT is suitable for a variety of applications, including:
- Portable and Battery-Powered Devices: Due to its low power consumption and compact size.
- Data Acquisition Systems: Provides a precise reference voltage for analog-to-digital converters (ADCs) and other data acquisition components.
- Industrial Automation: Used in control systems and measurement instruments requiring stable reference voltages.
- Medical Devices: Ideal for medical equipment that requires high accuracy and stability in voltage references.
Q & A
- What is the output voltage of the REF3212AIDBVT?
The output voltage of the REF3212AIDBVT is 1.25V with an initial accuracy of ±0.01%.
- What is the temperature coefficient of the REF3212AIDBVT?
The temperature coefficient is 4 ppm/°C (max) at 0°C to +125°C and 20 ppm/°C (max) at –40°C to +125°C.
- What is the maximum output current of the REF3212AIDBVT?
The device can source and sink up to ±10 mA.
- What is the quiescent current of the REF3212AIDBVT?
The quiescent current is 100 µA.
- What is the minimum input voltage required for the REF3212AIDBVT?
The minimum input voltage is 1.8 V.
- What is the operating temperature range of the REF3212AIDBVT?
The operating temperature range is –40°C to +125°C.
- What package type is the REF3212AIDBVT available in?
The device is packaged in a SOT-23-6 package.
- Is the REF3212AIDBVT stable with capacitive loads?
Yes, the device remains stable with any capacitive load.
- What are some typical applications of the REF3212AIDBVT?
Typical applications include portable and battery-powered devices, data acquisition systems, industrial automation, and medical devices.
- What is the noise performance of the REF3212AIDBVT?
The noise performance is 17 µVpp from 0.1 Hz to 10 Hz and 24 µVrms from 10 Hz to 10 kHz.
