Overview
The REF3125AIDBZR is a precision, low power, low dropout series voltage reference IC produced by Texas Instruments. It is part of the REF31xx family, which is known for its high accuracy and stability. 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.
The REF3125AIDBZR operates with a typical current of 100 µA and can source or sink up to 10 mA of output current. It is stable with any capacitive load and does not require a load capacitor. The device is specified for a wide temperature range of -40°C to +125°C, ensuring reliable performance across various environmental conditions.
Key Specifications
| Parameter | Value |
|---|---|
| Output Voltage | 2.5 V ± 0.2% |
| Output Current | ±10 mA |
| Quiescent Current (Iq) | 115 µA Maximum |
| Temperature Drift | 15 ppm/°C (0°C to 70°C), 20 ppm/°C (-40°C to 125°C) |
| Dropout Voltage | 5 mV |
| Operating Temperature Range | -40°C to 125°C |
| Package | SOT-23 (DBZ) with 3 pins |
Key Features
- High Accuracy: 0.2% maximum output voltage tolerance.
- Low Dropout: 5 mV dropout voltage.
- High Output Current: Can source or sink up to 10 mA of output current.
- Low Quiescent Current: 115 µA maximum.
- 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.
- Wide Operating Temperature Range: -40°C to 125°C.
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.
- Medical Equipment: Suitable for applications requiring high precision and reliability.
- Hand-Held Test Equipment: Offers the necessary stability and accuracy for such devices.
Q & A
- What is the output voltage of the REF3125AIDBZR?
The output voltage of the REF3125AIDBZR is 2.5 V with a tolerance of ±0.2%.
- What is the maximum output current of the REF3125AIDBZR?
The REF3125AIDBZR can source or sink up to 10 mA of output current.
- What is the quiescent current of the REF3125AIDBZR?
The quiescent current (Iq) of the REF3125AIDBZR is 115 µA maximum.
- What is the temperature drift performance of the REF3125AIDBZR?
The temperature drift is 15 ppm/°C from 0°C to 70°C and 20 ppm/°C from -40°C to 125°C.
- Does the REF3125AIDBZR require a load capacitor?
No, the REF3125AIDBZR does not require a load capacitor but is stable with any capacitive load.
- What is the operating temperature range of the REF3125AIDBZR?
The operating temperature range is -40°C to 125°C.
- In what package is the REF3125AIDBZR available?
The REF3125AIDBZR is available in a 3-pin SOT-23 (DBZ) package.
- What are some typical applications of the REF3125AIDBZR?
Typical applications include portable and battery-powered equipment, data acquisition systems, medical equipment, and hand-held test equipment.
- How much dropout voltage does the REF3125AIDBZR have?
The dropout voltage of the REF3125AIDBZR is 5 mV.
- Can the REF3125AIDBZR operate with supplies down to a certain voltage above the output voltage?
Yes, the REF3125AIDBZR can operate on supplies down to 5 mV above the output voltage when unloaded.
