Overview
The ADXL250JQC is a dual-axis accelerometer produced by Analog Devices Inc. It is a significant advancement in the field of microelectromechanical systems (MEMS) and is the world’s first commercially available two-axis monolithic accelerometer. This device measures both the x and y coordinates of acceleration in a given plane, making it highly versatile for various applications. The ADXL250JQC is designed to be low power and low noise, with a simple interface that simplifies integration with microprocessors.
Key Specifications
| Parameter | Value |
|---|---|
| Number of Axes | 2 (x and y) |
| Temperature Range | 0 to +70°C (J version), -40 to +85°C (A version) |
| Power Supply Voltage | 5 V |
| Power Supply Current | Typically 3.5 mA, maximum 5 mA (including output filters) |
| Sensitivity | Same sensitivity for both channels |
| Self-Test | Single self-test pin activates both sensors simultaneously |
| Offset Adjustment | Each channel has its own offset adjustment pin |
| Output Voltage | Each channel has its own output voltage pin |
| Package | Ceramic DIP (JQC) |
Key Features
- Dual-Axis Measurement: Measures acceleration in both x and y axes, allowing for comprehensive motion detection.
- Low Power Consumption: Typically consumes 3.5 mA of power, making it suitable for battery-powered devices.
- Low Noise: Designed to minimize noise, ensuring accurate and reliable measurements.
- Simplified Interface: Single self-test pin and separate output and offset adjustment pins for each axis simplify the interface to microprocessors.
- Temperature Stability: Available in versions with temperature ranges of 0 to +70°C and -40 to +85°C.
Applications
The ADXL250JQC is versatile and can be used in a variety of applications, including:
- Industrial Automation: For monitoring and controlling machinery movements.
- Aerospace and Defense: In inertial navigation systems and impact detection.
- Consumer Electronics: In gaming controllers, smartphones, and other handheld devices for motion sensing.
- Automotive Systems: For airbag deployment systems and vehicle stability control.
- Medical Devices: In patient monitoring systems and medical equipment.
Q & A
- What is the ADXL250JQC?
The ADXL250JQC is a dual-axis accelerometer produced by Analog Devices Inc., capable of measuring acceleration in both x and y axes.
- What is the power supply voltage for the ADXL250JQC?
The power supply voltage is 5 V.
- How much power does the ADXL250JQC typically consume?
It typically consumes 3.5 mA of power, with a maximum of 5 mA including output filters.
- What is the temperature range for the ADXL250JQC?
The temperature range is 0 to +70°C for the J version and -40 to +85°C for the A version.
- How does the self-test feature work?
The single self-test pin activates both sensors simultaneously, simplifying the interface to microprocessors.
- Can the offset be adjusted for each axis?
Yes, each channel has its own offset adjustment pin.
- What are the common applications of the ADXL250JQC?
Common applications include industrial automation, aerospace and defense, consumer electronics, automotive systems, and medical devices.
- How do I connect the ADXL250JQC to a microprocessor?
Connect a single 5-V power supply, and connect the output to its readout destination. The self-test pin can be left open-circuited for normal operation.
- Can the ADXL250JQC be used in battery-powered devices?
Yes, due to its low power consumption, it is suitable for battery-powered devices.
- What package type is the ADXL250JQC available in?
The ADXL250JQC is available in a ceramic DIP (JQC) package.
