Overview
The REF3140AIDBZRG4 is a precision, low-power, low-dropout series voltage reference from Texas Instruments. It is part of the REF31xx family, which offers a range of output voltages in a compact 3-pin SOT-23 package. This device is designed to provide stable voltage references with high accuracy and low noise, making it suitable for various applications requiring precise voltage regulation.
Key Specifications
| Parameter | Test Conditions | Min | Max | Unit | |
|---|---|---|---|---|---|
| Output Voltage (VOUT) | TA = 25°C, ILOAD = 0 mA, VIN = 5 V | 4.0878 | 4.096 | 4.1042 | V |
| Initial Accuracy | -0.2% | 0.2% | % | ||
| Output Voltage Noise (0.1Hz to 10Hz) | 53 | μVPP | |||
| Output Voltage Noise (10Hz to 10kHz) | 78 | μVRMS | |||
| Output Voltage Temperature Drift (0°C to 70°C) | 5 | 15 | ppm/°C | ||
| Output Voltage Temperature Drift (-40°C to +125°C) | 10 | 20 | ppm/°C | ||
| Long-term Stability (0 to 1000 hours) | 70 | ppm | |||
| Line Regulation | VREF + 0.05 ≤ VIN ≤ 5.5V | 20 | 65 | ppm/V | |
| Load Regulation (Sourcing) | 0mA < ILOAD < 10mA, VIN = VREF + 250mV | 10 | 30 | μV/mA | |
| Load Regulation (Sinking) | -10mA < ILOAD < 0mA, VIN = VREF + 100mV | 10 | 30 | μV/mA |
Key Features
- Precision voltage reference with output voltage of 4.096V
- Low power consumption: 100 μA typical quiescent current
- Low dropout voltage
- High accuracy: ±0.2% initial accuracy
- Low noise: 53 μVPP (0.1Hz to 10Hz), 78 μVRMS (10Hz to 10kHz)
- Low temperature drift: 5 ppm/°C (0°C to 70°C), 10 ppm/°C (-40°C to +125°C)
- Compact 3-pin SOT-23 package
- Operating temperature range: -40°C to +125°C
Applications
The REF3140AIDBZRG4 is suitable for a variety of applications that require stable and precise voltage references. These include:
- Data acquisition systems: Provides a stable reference voltage for analog-to-digital converters (ADCs) and other data acquisition components.
- Microcontroller systems: Supports microcontrollers with precise voltage requirements.
- Industrial control systems: Offers stable voltage references for industrial control and automation systems.
- Medical devices: Used in medical devices where precise voltage regulation is critical.
Q & A
- What is the output voltage of the REF3140AIDBZRG4?
The output voltage of the REF3140AIDBZRG4 is 4.096V. - What is the typical quiescent current of the REF3140AIDBZRG4?
The typical quiescent current is 100 μA. - What is the initial accuracy of the REF3140AIDBZRG4?
The initial accuracy is ±0.2%. - What is the temperature drift of the REF3140AIDBZRG4?
The temperature drift is 5 ppm/°C (0°C to 70°C) and 10 ppm/°C (-40°C to +125°C). - What is the operating temperature range of the REF3140AIDBZRG4?
The operating temperature range is -40°C to +125°C. - What package type is the REF3140AIDBZRG4 available in?
The REF3140AIDBZRG4 is available in a 3-pin SOT-23 package. - What are some common applications for the REF3140AIDBZRG4?
Common applications include data acquisition systems, microcontroller systems, industrial control systems, and medical devices. - How much noise does the REF3140AIDBZRG4 produce?
The output voltage noise is 53 μVPP (0.1Hz to 10Hz) and 78 μVRMS (10Hz to 10kHz). - What is the line regulation of the REF3140AIDBZRG4?
The line regulation is 20 ppm/V to 65 ppm/V. - What is the load regulation of the REF3140AIDBZRG4?
The load regulation is 10 μV/mA to 30 μV/mA for both sourcing and sinking currents.
