Overview
The REF2025AIDDCT from Texas Instruments is a high-precision, low-power, dual-output voltage reference designed for applications requiring stable and accurate voltage references. This component is particularly useful in single-supply systems, offering two outputs: VREF and VREF/2. It is known for its excellent temperature drift performance and high initial accuracy, making it suitable for a variety of industrial and precision applications.
Key Specifications
| Parameter | Value |
|---|---|
| Temperature Drift | 8 ppm/°C (maximum) from –40°C to 125°C |
| Initial Accuracy | ±0.05% (maximum) |
| VREF and VBIAS Tracking | 6 ppm/°C (maximum) from –40°C to 85°C, 7 ppm/°C (maximum) from –40°C to 125°C |
| Package | SOT-23-THN (DDC), 5 pins |
| Dropout Voltage | 10 mV |
| Output Current | ±20 mA |
| Quiescent Current | 360 µA |
| Line Regulation | 3 ppm/V |
| Load Regulation | 8 ppm/mA |
Key Features
- Dual outputs: VREF and VREF/2 for convenient use in single-supply systems.
- Excellent temperature drift performance: 8 ppm/°C (maximum) from –40°C to 125°C.
- High initial accuracy: ±0.05% (maximum).
- VREF and VBIAS tracking over temperature: 6 ppm/°C (maximum) from –40°C to 85°C, 7 ppm/°C (maximum) from –40°C to 125°C.
- Microsize package: SOT-23-THN (DDC) with 5 pins.
- Low dropout voltage: 10 mV.
- High output current: ±20 mA.
- Low quiescent current: 360 µA.
- Matte-Sn version for improved corrosion resistance in harsh environments.
Applications
The REF2025AIDDCT is ideal for applications requiring high precision and stability, such as in analog-to-digital converters (ADCs) where a stable voltage reference is necessary for biasing input bipolar signals. It is also suitable for battery-operated systems due to its low dropout voltage and low quiescent current. Other applications include industrial drives, motor control systems, and high-precision industrial applications where long-term stability and low noise levels are critical.
Q & A
- What is the temperature drift of the REF2025AIDDCT?
The temperature drift is 8 ppm/°C (maximum) from –40°C to 125°C. - What is the initial accuracy of the REF2025AIDDCT?
The initial accuracy is ±0.05% (maximum). - What are the output currents of the REF2025AIDDCT?
The output currents are ±20 mA. - What is the quiescent current of the REF2025AIDDCT?
The quiescent current is 360 µA. - What is the dropout voltage of the REF2025AIDDCT?
The dropout voltage is 10 mV. - What package type is the REF2025AIDDCT available in?
The REF2025AIDDCT is available in a SOT-23-THN (DDC) package with 5 pins. - Is the REF2025AIDDCT suitable for harsh environments?
Yes, the Matte-Sn version of the REF2025AIDDCT offers improved corrosion resistance in harsh environments. - What are some common applications of the REF2025AIDDCT?
Common applications include ADCs, battery-operated systems, industrial drives, motor control systems, and high-precision industrial applications. - How does the REF2025AIDDCT track VREF and VBIAS over temperature?
The VREF and VBIAS outputs track each other with a precision of 6 ppm/°C (maximum) from –40°C to 85°C and 7 ppm/°C (maximum) from –40°C to 125°C. - What is the line regulation of the REF2025AIDDCT?
The line regulation is 3 ppm/V.
