Overview
The REF2030AIDDCR, produced by Texas Instruments, is a low-drift, low-power, dual-output voltage reference integrated circuit. It is designed to provide a stable reference voltage (VREF) and a second highly-accurate voltage (VBIAS), which is half of the reference voltage, making it convenient for use in single-supply systems. This device is particularly useful in applications requiring precise voltage references, such as analog-to-digital converters (ADCs) and other high-precision industrial applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Reference Voltage (VREF) | 3.0 | V |
| Bias Voltage (VBIAS) | 1.5 | V |
| Temperature Drift | 8 ppm/°C (max) | -40°C to 125°C |
| Initial Accuracy | ±0.05% (max) | |
| VREF and VBIAS Tracking Over Temperature | 6 ppm/°C (max) from -40°C to 85°C, 7 ppm/°C (max) from -40°C to 125°C | |
| Package Type | SOT23-5 | |
| Dropout Voltage | 10 mV | |
| Output Current | ±20 mA | |
| Quiescent Current | 360 µA | |
| Line Regulation | 3 ppm/V | |
| Load Regulation | 8 ppm/mA | |
| Operating Temperature Range | -40°C to 125°C |
Key Features
- Two outputs: VREF and VBIAS (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: SOT23-5.
- Low dropout voltage: 10 mV.
- High output current: ±20 mA.
- Low quiescent current: 360 µA.
- Line regulation: 3 ppm/V.
- Load regulation: 8 ppm/mA.
- Matte-Sn version available for improved corrosion resistance in harsh environments.
Applications
- Electricity meters.
- Analog input and output modules.
- Servo drive control modules.
- Circuit breakers (ACB, MCCB, VCB).
- Clinical digital thermometers.
- Lab and field instrumentation.
- Battery test equipment.
Q & A
- What is the reference voltage provided by the REF2030AIDDCR?
The REF2030AIDDCR provides a reference voltage (VREF) of 3.0 V and a bias voltage (VBIAS) of 1.5 V, which is half of the reference voltage.
- What is the temperature drift performance of the REF2030AIDDCR?
The temperature drift performance is 8 ppm/°C (maximum) from -40°C to 125°C.
- What is the initial accuracy of the REF2030AIDDCR?
The initial accuracy is ±0.05% (maximum).
- How do VREF and VBIAS track over temperature?
VREF and VBIAS 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 package type of the REF2030AIDDCR?
The package type is SOT23-5.
- What is the dropout voltage of the REF2030AIDDCR?
The dropout voltage is 10 mV.
- What is the output current capability of the REF2030AIDDCR?
The output current capability is ±20 mA.
- What is the quiescent current of the REF2030AIDDCR?
The quiescent current is 360 µA.
- What are the line and load regulation specifications of the REF2030AIDDCR?
The line regulation is 3 ppm/V, and the load regulation is 8 ppm/mA.
- What are some common applications of the REF2030AIDDCR?
Common applications include electricity meters, analog input and output modules, servo drive control modules, circuit breakers, clinical digital thermometers, lab and field instrumentation, and battery test equipment.
- Is the REF2030AIDDCR suitable for harsh environments?
Yes, a Matte-Sn version is available for improved corrosion resistance in harsh environments like Battelle Class III and similar conditions.
