Overview
The REF3125AQDBZRQ1 is an automotive-grade series voltage reference produced by Texas Instruments. It offers a fixed 2.5V output with high precision and stability, packaged in a compact 3-pin SOT-23-3 package. This device is designed for demanding applications, particularly in automotive environments, where robust performance and accuracy are crucial. It features low power consumption, low noise, and a wide operating temperature range, making it suitable for power management systems, sensor interfaces, and electronic control units (ECUs).
Key Specifications
| Parameter | Value |
|---|---|
| Output Voltage | 2.5V |
| Output Current | 10 mA |
| Voltage Tolerance | ±0.2% |
| Temperature Coefficient | 20 ppm/°C |
| Supply Voltage | 2.55V ~ 5.5V |
| Supply Current | 135 µA |
| Noise (0.1Hz to 10Hz) | 33 µVp-p |
| Noise (10Hz to 10kHz) | 48 µVrms |
| Operating Temperature Range | -40°C to 125°C |
| Package / Case | SOT-23-3 |
| Mounting Type | Surface Mount |
Key Features
- AEC-Q100 qualified, meeting strict automotive ESD/hbm/cdm standards.
- High accuracy: ±0.2% maximum output voltage tolerance.
- Low drift performance: 20 ppm/°C maximum temperature coefficient.
- High output current capability of up to 10 mA.
- Low supply current of 135 µA.
- Low noise performance: 33 µVp-p from 0.1Hz to 10Hz and 48 µVrms from 10Hz to 10kHz.
- Compact SOT-23-3 package suitable for space-constrained applications.
Applications
The REF3125AQDBZRQ1 is widely used in various applications, including:
- Automotive systems: power management systems, sensor interfaces, and electronic control units (ECUs).
- Industrial automation: where stable voltage references are critical.
- Medical devices: requiring precise and reliable voltage regulation.
- Portable electronics: battery-powered systems and other electronic designs.
Q & A
- What is the output voltage of the REF3125AQDBZRQ1?
The output voltage is fixed at 2.5V. - What is the maximum output current of the REF3125AQDBZRQ1?
The maximum output current is 10 mA. - What is the temperature coefficient of the REF3125AQDBZRQ1?
The temperature coefficient is 20 ppm/°C. - What is the supply voltage range for the REF3125AQDBZRQ1?
The supply voltage range is from 2.55V to 5.5V. - What is the operating temperature range of the REF3125AQDBZRQ1?
The operating temperature range is from -40°C to 125°C. - Is the REF3125AQDBZRQ1 AEC-Q100 qualified?
Yes, it is AEC-Q100 qualified. - What is the noise performance of the REF3125AQDBZRQ1?
The noise performance is 33 µVp-p from 0.1Hz to 10Hz and 48 µVrms from 10Hz to 10kHz. - What package type does the REF3125AQDBZRQ1 come in?
The REF3125AQDBZRQ1 comes in a 3-pin SOT-23-3 package. - What are some common applications of the REF3125AQDBZRQ1?
Common applications include automotive systems, industrial automation, medical devices, and portable electronics. - What is the supply current of the REF3125AQDBZRQ1?
The supply current is 135 µA.
