Overview
The REF1941AIDDCR is a precision voltage reference component manufactured by Texas Instruments. This device is designed to provide high accuracy and stability, making it suitable for a variety of applications requiring reliable voltage references. The REF1941AIDDCR features a dual-output configuration, offering both a full reference voltage (VREF) and a half reference voltage (VREF/2), which enhances its versatility in different circuit designs.
Key Specifications
| Parameter | Value |
|---|---|
| Reference Voltage (VREF) | 4.1 V |
| Output Voltages | VREF and VREF/2 |
| Package Type | SOT-23-THN (DDC), 5-pin |
| Operating Temperature Range | -40°C to 125°C |
| Initial Accuracy | ±0.1% (max) |
| Temperature Drift | 25 ppm/°C (max) from -40°C to 125°C |
| Quiescent Current | < 430 µA |
| Dropout Voltage | 20 mV above the output voltage |
Key Features
- Dual-output voltage reference: Provides both VREF and VREF/2 outputs, enhancing flexibility in circuit design.
- High initial accuracy: ±0.1% (max) ensures precise voltage referencing.
- Low temperature drift: 25 ppm/°C (max) from -40°C to 125°C maintains stability across a wide temperature range.
- Low dropout voltage: Can operate with a supply voltage just 20 mV above the output voltage.
- Low quiescent current: Less than 430 µA, making it power-efficient.
Applications
The REF1941AIDDCR is suitable for various applications that require high-precision voltage references, including:
- Analog-to-digital converters (ADCs): Provides stable reference voltages for ADC input ranges.
- Current sensing: Used in low-side, bidirectional current-sensing solutions.
- Medical devices: Its high accuracy and stability make it suitable for medical applications.
- Industrial control systems: Ensures reliable operation in industrial environments.
Q & A
- What is the reference voltage provided by the REF1941AIDDCR?
The REF1941AIDDCR provides a reference voltage of 4.1 V and an additional half reference voltage of 2.05 V. - What is the operating temperature range of the REF1941AIDDCR?
The operating temperature range is from -40°C to 125°C. - What is the initial accuracy of the REF1941AIDDCR?
The initial accuracy is ±0.1% (max). - What is the temperature drift of the REF1941AIDDCR?
The temperature drift is 25 ppm/°C (max) from -40°C to 125°C. - What is the quiescent current of the REF1941AIDDCR?
The quiescent current is less than 430 µA. - What is the dropout voltage of the REF1941AIDDCR?
The dropout voltage is 20 mV above the output voltage. - In what package is the REF1941AIDDCR available?
The REF1941AIDDCR is available in a SOT-23-THN (DDC) package with 5 pins. - What are some common applications of the REF1941AIDDCR?
Common applications include analog-to-digital converters, current sensing, medical devices, and industrial control systems. - How does the REF1941AIDDCR enhance circuit design flexibility?
The dual-output configuration (VREF and VREF/2) enhances flexibility in circuit design. - Is the REF1941AIDDCR suitable for low-power applications?
Yes, it is suitable due to its low quiescent current and low dropout voltage.
