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BMA280
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BMA280 - Acceleration Sensor

Product Overview

The BMA280 is an acceleration sensor belonging to the category of MEMS (Micro-Electro-Mechanical Systems) sensors. It is commonly used for measuring acceleration in various electronic devices and systems. The sensor possesses unique characteristics, comes in a specific package, and has essential features that make it suitable for a wide range of applications.

Category

MEMS Sensor

Use

The BMA280 is used for measuring acceleration in electronic devices such as smartphones, tablets, wearables, and industrial applications.

Characteristics

  • Low power consumption
  • High resolution
  • Digital interface
  • Small package size

Package

The BMA280 is typically available in a small surface-mount package.

Essence

The essence of the BMA280 lies in its ability to accurately measure acceleration while consuming minimal power and providing high-resolution data.

Packaging/Quantity

The sensor is usually supplied in tape and reel packaging with varying quantities based on customer requirements.

Specifications

  • Measurement Range: ±2g, ±4g, ±8g, or ±16g
  • Output Data Rate: 100 Hz to 1 kHz
  • Operating Voltage: 1.71V to 3.6V
  • Interface: I2C and SPI

Detailed Pin Configuration

The BMA280 typically consists of multiple pins for power supply, communication interface, and data output. A detailed pin configuration diagram can be found in the product datasheet.

Functional Features

  • Low noise
  • Temperature compensation
  • Self-test capability
  • Programmable interrupt engine

Advantages and Disadvantages

Advantages

  • Low power consumption
  • High accuracy
  • Small form factor
  • Versatile interface options

Disadvantages

  • Limited measurement range compared to some other sensors
  • Sensitive to electromagnetic interference in certain environments

Working Principles

The BMA280 operates based on the principles of capacitive sensing, where changes in capacitance due to acceleration are converted into digital signals. The sensor utilizes internal circuitry to process these signals and provide accurate acceleration data.

Detailed Application Field Plans

The BMA280 finds extensive use in various applications, including: - Motion tracking in consumer electronics - Vibration monitoring in industrial equipment - Tilt sensing in automotive systems - Impact detection in sports and fitness devices

Detailed and Complete Alternative Models

Some alternative models to the BMA280 include: - BMA250: Similar functionality with lower resolution - BMA255: Enhanced features with higher power consumption - BMA222: Compact design with reduced measurement range

In conclusion, the BMA280 acceleration sensor offers a balance of performance, power efficiency, and versatility, making it a popular choice for diverse applications requiring precise acceleration measurements.

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技術ソリューションにおける BMA280 の適用に関連する 10 件の一般的な質問と回答をリストします。

  1. What is the BMA280 accelerometer used for?

    • The BMA280 accelerometer is commonly used for measuring acceleration, tilt, and vibration in various technical solutions.

  2. What is the operating voltage range of the BMA280?

    • The operating voltage range of the BMA280 is typically between 1.71V and 3.6V.

  3. Can the BMA280 be used for motion detection in wearable devices?

    • Yes, the BMA280 can be utilized for motion detection in wearable devices due to its low power consumption and high accuracy.

  4. How does the BMA280 communicate with microcontrollers or other devices?

    • The BMA280 typically communicates via I2C (Inter-Integrated Circuit) or SPI (Serial Peripheral Interface) protocols.

  5. What is the resolution of the BMA280 accelerometer?

    • The BMA280 has a selectable resolution ranging from 8-bit to 14-bit, allowing for fine-tuning based on the application's requirements.

  6. Is the BMA280 suitable for automotive applications?

    • Yes, the BMA280 is suitable for automotive applications, including vehicle stability control systems and impact detection.

  7. Does the BMA280 include built-in motion-triggered interrupt features?

    • Yes, the BMA280 offers configurable motion-triggered interrupt features, enabling efficient power management and wake-up functions.

  8. Can the BMA280 withstand harsh environmental conditions?

    • The BMA280 is designed to operate reliably in harsh environmental conditions, making it suitable for industrial and outdoor applications.

  9. What are the key differences between the BMA280 and its predecessors, such as the BMA250?

    • The BMA280 offers improved performance, lower power consumption, and additional features compared to its predecessors, such as enhanced FIFO buffer capabilities.

  10. Are there any specific calibration requirements for integrating the BMA280 into a technical solution?

    • The BMA280 typically includes self-calibration mechanisms, but precise calibration may be necessary depending on the specific application and accuracy requirements.