Overview
The REF3120AIDBZTG4 is a high-precision voltage reference device produced by Texas Instruments. It is part of the REF31xx family, known for its low power consumption, low dropout, and high accuracy. This device is particularly suited for applications requiring stable and precise voltage references, such as in data acquisition systems, medical equipment, and portable, battery-powered devices. The REF3120AIDBZTG4 offers a fixed output voltage of 2.048V with excellent temperature drift performance and low noise characteristics, making it an ideal choice for demanding analog circuits.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Output Voltage (VOUT) | 2.0439 | 2.048 | 2.0521 | V |
| Initial Accuracy | -0.2% | 0.2% | ||
| Output Voltage Noise (0.1 Hz to 10 Hz) | 27 μVPP | |||
| Output Voltage Noise (10 Hz to 10 kHz) | 39 μVRMS | |||
| Temperature Drift (0°C to 70°C) | 15 ppm/°C | |||
| Temperature Drift (-40°C to +125°C) | 20 ppm/°C | |||
| Quiescent Current (IQ) | 100 μA | 115 μA | ||
| Operating Temperature Range | -40°C | 125°C | ||
| Load Regulation (Sourcing 0mA < ILOAD < 10mA) | 20 ppm/V | |||
| Package Type | SOT-23-3 |
Key Features
- High Precision: Offers an output voltage of 2.048V with an initial accuracy of ±0.2% and excellent temperature drift performance of 15 ppm/°C from 0°C to 70°C and 20 ppm/°C from -40°C to +125°C.
- Low Power Consumption: Typical quiescent current of 100 μA, making it ideal for battery-powered and portable applications.
- Low Dropout Voltage: Can operate with supplies down to 5 mV above the output voltage.
- No Load Capacitor Required: Stable with any capacitive load and can sink or source up to 10 mA of output current.
- Compact Package: Available in a small 3-pin SOT-23 package, suitable for space-constrained designs.
- Wide Temperature Range: Specified for operation over a wide temperature range of -40°C to +125°C.
Applications
- Data Acquisition Systems: Provides stable voltage references necessary for maintaining accuracy in data acquisition systems.
- Medical Equipment: Used in medical devices where precise voltage references are critical.
- Portable and Battery-Powered Equipment: Ideal for devices that require low power consumption and high precision.
- Hand-Held Test Equipment: Suitable for handheld test and measurement devices that need stable voltage references.
Q & A
- What is the output voltage of the REF3120AIDBZTG4?
The output voltage of the REF3120AIDBZTG4 is 2.048V.
- What is the initial accuracy of the REF3120AIDBZTG4?
The initial accuracy is ±0.2%.
- What is the typical quiescent current of the REF3120AIDBZTG4?
The typical quiescent current is 100 μA.
- What is the temperature drift of the REF3120AIDBZTG4 from 0°C to 70°C?
The temperature drift is 15 ppm/°C from 0°C to 70°C.
- Does the REF3120AIDBZTG4 require a load capacitor?
No, it does not require a load capacitor but is stable with any capacitive load.
- What is the maximum output current that the REF3120AIDBZTG4 can source or sink?
The device can source or sink up to 10 mA of output current.
- What is the operating temperature range of the REF3120AIDBZTG4?
The operating temperature range is -40°C to +125°C.
- In what package is the REF3120AIDBZTG4 available?
The device is available in a 3-pin SOT-23 package.
- What are some common applications of the REF3120AIDBZTG4?
Common applications include data acquisition systems, medical equipment, portable and battery-powered equipment, and hand-held test equipment.
- How does the REF3120AIDBZTG4 handle noise?
The device has low noise characteristics, with output voltage noise of 27 μVPP from 0.1 Hz to 10 Hz and 39 μVRMS from 10 Hz to 10 kHz.
