Overview
The REF3112AIDBZRG4, produced by Texas Instruments, is part of the REF31xx family of precision, low power, low dropout, series voltage references. This component is packaged in a tiny 3-pin SOT-23 package, making it ideal for portable and battery-powered applications due to its small size and low power consumption of 100 μA typical. The REF3112 does not require a load capacitor and is stable with any capacitive load, capable of sinking or sourcing up to 10 mA of output current. It operates over a wide temperature range of -40°C to +125°C, making it versatile for various environments.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package | SOT-23 (DBZ) | - |
| Pins | 3 | - |
| Operating Temperature Range | -40 to 125 | °C |
| Output Voltage | 1.25 V | V |
| Initial Accuracy | ±0.2% | - |
| Dropout Voltage | 5 mV | mV |
| Output Current | ±10 mA | mA |
| Quiescent Current (IQ) | 115 µA Maximum | µA |
| Temperature Drift | 15 ppm/°C (0°C to 70°C), 20 ppm/°C (-40°C to 125°C) | ppm/°C |
Key Features
- Small Size: Packaged in a tiny 3-pin SOT-23 package, ideal for space-constrained applications.
- Low Power Consumption: Typical quiescent current of 100 μA, making it suitable for battery-powered devices.
- Low Dropout Voltage: 5 mV dropout voltage, allowing operation with supplies down to 5 mV above the output voltage.
- High Output Current: Capable of sinking or sourcing up to 10 mA of output current.
- High Accuracy: Maximum initial accuracy of ±0.2%.
- Excellent Temperature Drift Performance: 15 ppm/°C from 0°C to 70°C and 20 ppm/°C from -40°C to 125°C.
- No Load Capacitor Required: Stable with any capacitive load.
Applications
- Portable and Battery-Powered Equipment: Ideal due to its low power consumption and small size.
- Data Acquisition Systems: Provides stable voltage references necessary for maintaining accuracy in data acquisition systems.
- Medical Equipment: Suitable for medical devices requiring precise voltage references.
- Hand-Held Test Equipment: Used in handheld test equipment where low power and precision are critical.
Q & A
- What is the typical quiescent current of the REF3112?
The typical quiescent current of the REF3112 is 100 μA.
- What is the package type and pin count of the REF3112?
The REF3112 is packaged in a 3-pin SOT-23 package.
- What is the operating temperature range of the REF3112?
The operating temperature range of the REF3112 is -40°C to 125°C.
- What is the output voltage of the REF3112?
The output voltage of the REF3112 is 1.25 V.
- Does the REF3112 require a load capacitor?
No, the REF3112 does not require a load capacitor but is stable with any capacitive load.
- What is the maximum output current of the REF3112?
The REF3112 can sink or source up to 10 mA of output current.
- What is the temperature drift performance of the REF3112?
The temperature drift of the REF3112 is 15 ppm/°C from 0°C to 70°C and 20 ppm/°C from -40°C to 125°C.
- What are some typical applications of the REF3112?
The REF3112 is typically used in portable and battery-powered equipment, data acquisition systems, medical equipment, and hand-held test equipment.
- What is the dropout voltage of the REF3112?
The dropout voltage of the REF3112 is 5 mV.
- How accurate is the output voltage of the REF3112?
The output voltage of the REF3112 has a maximum initial accuracy of ±0.2%.
