Overview
The REF3112AIDBZR is a precision, low power, low dropout series voltage reference IC produced by Texas Instruments. This device is part of the REF31xx family and is available in a compact 3-pin SOT-23 package. It is designed to provide a stable voltage reference with high accuracy and low drift, making it ideal for various applications including portable and battery-powered equipment, data acquisition systems, medical equipment, and hand-held test equipment.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Output Voltage | 1.25 | V |
| Output Voltage Accuracy | ±0.2% | % |
| Temperature Drift | 15 ppm/°C (0°C to +70°C), 20 ppm/°C (–40°C to +125°C) | ppm/°C |
| Quiescent Current (Iq) | 100 µA (typical), 115 µA (maximum) | µA |
| Output Current | ±10 mA | mA |
| Dropout Voltage | 5 mV | mV |
| Operating Temperature Range | –40°C to +125°C | °C |
| Package | SOT-23 (DBZ) | |
| Pins | 3 |
Key Features
- Compact Package: Available in a tiny 3-pin SOT-23 package.
- Low Dropout Voltage: Operates with a dropout voltage as low as 5 mV.
- High Output Current: Can sink or source up to ±10 mA of output current.
- High Accuracy: Output voltage accuracy of ±0.2% maximum.
- Low Quiescent Current: Typical quiescent current of 100 µA and maximum of 115 µA.
- Excellent Drift Performance: Temperature drift of 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.
- Wide Temperature Range: Specified for the temperature range of –40°C to +125°C.
Applications
- Portable and Battery-Powered Equipment: Ideal due to its low power consumption and compact 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 various handheld test and measurement devices.
Q & A
- What is the output voltage of the REF3112AIDBZR?
The output voltage of the REF3112AIDBZR is 1.25 V.
- What is the temperature drift of the REF3112AIDBZR?
The temperature drift is 15 ppm/°C from 0°C to +70°C and 20 ppm/°C from –40°C to +125°C.
- What is the quiescent current of the REF3112AIDBZR?
The typical quiescent current is 100 µA, with a maximum of 115 µA.
- What is the dropout voltage of the REF3112AIDBZR?
The dropout voltage is as low as 5 mV.
- Does the REF3112AIDBZR require a load capacitor?
No, it does not require a load capacitor but is stable with any capacitive load.
- What is the operating temperature range of the REF3112AIDBZR?
The operating temperature range is –40°C to +125°C.
- In what package is the REF3112AIDBZR available?
The REF3112AIDBZR is available in a 3-pin SOT-23 (DBZ) package.
- What are some typical applications of the REF3112AIDBZR?
Typical applications include portable and battery-powered equipment, data acquisition systems, medical equipment, and hand-held test equipment.
- Can the REF3112AIDBZR sink or source current?
- What is the output voltage accuracy of the REF3112AIDBZR?
The output voltage accuracy is ±0.2% maximum.
