Overview
The REF3212AIDBVR is a precision voltage reference from Texas Instruments, part of the REF32xx family. This component is designed for high accuracy and stability, making it suitable for a wide range of applications. It is available in the compact SOT23-6 package, which is ideal for space-constrained and portable devices. The REF3212AIDBVR operates with a low quiescent current of 100μA and can supply an output current of up to ±10mA, ensuring efficient power management.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Output Voltage (VOUT) | 1.2475 | 1.25 | 1.2525 | V | |
| Initial Accuracy | -0.2 | 0.01 | 0.2 | % | |
| Output Voltage Noise (0.1Hz to 10Hz) | 17 | µVPP | |||
| Output Voltage Noise (10Hz to 10kHz) | 24 | µVRMS | |||
| Temperature Drift (0°C to +125°C) | 4 | 7 | ppm/°C | ||
| Temperature Drift (–40°C to +125°C) | 10.5 | 20 | ppm/°C | ||
| Dropout Voltage | 0°C ≤ TA ≤ +125°C | 5 | 50 | mV | |
| Output Current (ILOAD) | VIN = VOUT + 250mV | -10 | 10 | mA | |
| Quiescent Current (IQ) | ENABLE > 1.5V | 100 | 120 | µA | |
| Operating Temperature Range | -40 | +125 | °C |
Key Features
- High Accuracy: The REF3212AIDBVR offers an initial accuracy of 0.01% and a temperature drift of 4ppm/°C from 0°C to +125°C, ensuring stable output voltage across various temperatures.
- Low Dropout Voltage: With a dropout voltage as low as 5mV, this reference can operate efficiently even with minimal input voltage headroom.
- Low Quiescent Current: It consumes a low quiescent current of 100μA, making it suitable for battery-powered and portable applications.
- High Output Current: The device can supply up to ±10mA of output current, supporting a wide range of load conditions.
- No Load Capacitor Required: The REF3212AIDBVR does not require an external load capacitor, simplifying the design and reducing component count.
- Enable/Shutdown Feature: The device includes an enable/shutdown pin, allowing it to be placed in a low-power mode to conserve energy.
Applications
- Portable Equipment: Ideal for battery-powered devices due to its low power consumption and compact size.
- Data Acquisition Systems: Used in data acquisition systems to provide a stable reference voltage for analog-to-digital converters (ADCs).
- Medical Equipment: Suitable for medical devices that require high accuracy and stability in their voltage references.
- Test Equipment: Employed in test and measurement equipment to ensure precise voltage levels.
Q & A
- What is the output voltage of the REF3212AIDBVR?
The output voltage of the REF3212AIDBVR is 1.25V.
- What is the typical temperature drift of the REF3212AIDBVR?
The typical temperature drift is 4ppm/°C from 0°C to +125°C and 10.5ppm/°C from –40°C to +125°C.
- What is the maximum output current of the REF3212AIDBVR?
The maximum output current is ±10mA.
- Does the REF3212AIDBVR require an external load capacitor?
No, the REF3212AIDBVR does not require an external load capacitor.
- How can the REF3212AIDBVR be placed in a low-power mode?
The device can be placed in a low-power mode by pulling the ENABLE/SHUTDOWN pin low.
- What is the quiescent current of the REF3212AIDBVR?
The quiescent current is 100μA when the ENABLE pin is high.
- What is the operating temperature range of the REF3212AIDBVR?
The operating temperature range is –40°C to +125°C.
- What package type is the REF3212AIDBVR available in?
The REF3212AIDBVR is available in the SOT23-6 package.
- Can the REF3212AIDBVR be used in data acquisition systems?
- How does the REF3212AIDBVR handle thermal hysteresis?
The REF3212AIDBVR exhibits minimal thermal hysteresis, ensuring stable output voltage even after temperature cycling.
