Overview
The Texas Instruments REF3112AQDBZRQ1 is a precision, low-power voltage reference from the REF31xx-Q1 family. This component is designed to provide a stable voltage output with high accuracy and low drift, making it suitable for a variety of applications, including automotive, industrial, and portable electronics. The REF3112AQDBZRQ1 is packaged in a compact 3-pin SOT-23 package, which is ideal for space-constrained designs.
Key Specifications
| Parameter | Description |
|---|---|
| Output Voltage | 1.25V ±0.2% |
| Supply Voltage Range | 1.8V to 5.5V |
| Output Current | ±10 mA |
| Temperature Range | –40°C to +125°C |
| Quiescent Current | Typical 100 μA, Maximum 135 μA |
| Dropout Voltage | 5 mV |
| Noise | 17 μVp-p (0.1 Hz to 10 Hz) |
| Package | SOT-23 |
| Compliance | RoHS compliant |
Key Features
- High Accuracy: Output voltage accuracy of ±0.2% maximum.
- Low Drift: Temperature drift of 20 ppm/°C maximum from –40°C to +125°C.
- Low Dropout Voltage: Operates with a supply voltage just 5 mV above the output voltage in an unloaded condition.
- Low Quiescent Current: Typical quiescent current of 100 μA, with a maximum of 135 μA over the temperature range.
- No Load Capacitor Required: Stable with any capacitive load.
- Low Noise: Output noise of 17 μVp-p (0.1 Hz to 10 Hz).
- Compact Package: 3-pin SOT-23 package for space-efficient designs.
Applications
- Automotive Systems: HEV/EV powertrain systems, automotive battery management systems, inverter systems, electric power steering systems, and advanced driver assistance systems (ADAS) such as radar systems and night vision systems.
- Portable and Battery-Powered Equipment: Ideal for devices requiring stable voltage references with low power consumption.
- Data Acquisition Systems: Provides stable voltage references for microcontrollers and data converters.
- Infotainment and MCU Systems: Suitable for infotainment systems and microcontrollers attached to various automotive and industrial applications.
Q & A
- What is the output voltage of the REF3112AQDBZRQ1? The output voltage is 1.25V ±0.2%.
- What is the supply voltage range for the REF3112AQDBZRQ1? The supply voltage range is from 1.8V to 5.5V.
- How much output current can the REF3112AQDBZRQ1 source or sink? It can source or sink up to ±10 mA of output current.
- What is the operating temperature range of the REF3112AQDBZRQ1? The operating temperature range is –40°C to +125°C.
- Does the REF3112AQDBZRQ1 require a load capacitor? No, it does not require a load capacitor and is stable with any capacitive load.
- What is the typical quiescent current of the REF3112AQDBZRQ1? The typical quiescent current is 100 μA.
- What are some common applications of the REF3112AQDBZRQ1? Common applications include automotive systems, portable and battery-powered equipment, data acquisition systems, and infotainment systems.
- Is the REF3112AQDBZRQ1 RoHS compliant? Yes, it is RoHS compliant.
- What is the package type of the REF3112AQDBZRQ1? It is packaged in a 3-pin SOT-23 package.
- How much noise does the REF3112AQDBZRQ1 produce? The output noise is 17 μVp-p (0.1 Hz to 10 Hz).
