NXP USA Inc.
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MMA7268QR2

MMA7268QR2

Product Overview

Category

The MMA7268QR2 belongs to the category of accelerometers.

Use

It is used for measuring acceleration in various electronic devices and systems.

Characteristics

  • Three-axis accelerometer
  • Low power consumption
  • Small form factor
  • High sensitivity and accuracy

Package

The MMA7268QR2 is available in a small, surface-mount package.

Essence

The essence of the MMA7268QR2 lies in its ability to provide accurate and reliable acceleration measurements in a compact form factor.

Packaging/Quantity

The MMA7268QR2 is typically sold in reels containing a specific quantity based on customer requirements.

Specifications

  • Operating Voltage: 2.2V to 3.6V
  • Sensitivity: Selectable ±1.5g, ±2g, or ±6g full-scale range
  • Output: Analog voltage output proportional to acceleration
  • Operating Temperature Range: -40°C to +85°C
  • Bandwidth: 50Hz bandwidth filter

Detailed Pin Configuration

The MMA7268QR2 features a 16-pin QFN package with the following pin configuration: 1. VDD 2. GND 3. XOUT 4. YOUT 5. ZOUT 6. ST 7. NC 8. NC 9. NC 10. NC 11. NC 12. NC 13. NC 14. NC 15. NC 16. NC

Functional Features

  • Selectable full-scale range
  • Low power consumption
  • Built-in self-test function
  • Three-axis measurement capability

Advantages

  • Small form factor
  • High sensitivity
  • Low power consumption
  • Accurate and reliable measurements

Disadvantages

  • Limited to three-axis measurements
  • Analog output requires external ADC for digital processing

Working Principles

The MMA7268QR2 operates based on the principles of capacitive micro-machined accelerometer (CMA) technology. It utilizes a mass suspended by springs within the device to measure changes in capacitance due to acceleration forces.

Detailed Application Field Plans

The MMA7268QR2 finds applications in various fields including: - Consumer electronics - Automotive systems - Industrial equipment - Robotics - Motion sensing devices

Detailed and Complete Alternative Models

Some alternative models to the MMA7268QR2 include: - ADXL335 - LIS3LV02DQ - KXTC9

In conclusion, the MMA7268QR2 is a versatile and reliable three-axis accelerometer suitable for a wide range of applications requiring accurate acceleration measurements.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací MMA7268QR2 v technických řešeních

  1. What is the MMA7268QR2 accelerometer used for?

    • The MMA7268QR2 accelerometer is commonly used to measure acceleration in various technical solutions, such as motion detection, tilt sensing, and vibration monitoring.

  2. What is the operating voltage range of the MMA7268QR2?

    • The operating voltage range of the MMA7268QR2 is typically between 2.2V and 3.6V.

  3. How can I interface with the MMA7268QR2 accelerometer?

    • The MMA7268QR2 can be interfaced using analog voltage outputs, making it compatible with microcontrollers and other digital systems.

  4. What are the sensitivity levels of the MMA7268QR2?

    • The MMA7268QR2 offers selectable sensitivity levels of ±1.5g, ±2g, or ±6g, allowing for flexibility in different applications.

  5. Can the MMA7268QR2 be used for impact detection?

    • Yes, the MMA7268QR2 can be utilized for impact detection due to its ability to measure sudden changes in acceleration.

  6. Is the MMA7268QR2 suitable for automotive applications?

    • Yes, the MMA7268QR2 is suitable for automotive applications, including vehicle stability control and airbag deployment systems.

  7. What is the output format of the MMA7268QR2?

    • The MMA7268QR2 provides analog voltage outputs proportional to the measured acceleration.

  8. Does the MMA7268QR2 require external filtering?

    • External filtering may be necessary depending on the specific application requirements, but the MMA7268QR2 has built-in low-pass filtering to reduce noise.

  9. Can the MMA7268QR2 be used for inclination measurement?

    • Yes, the MMA7268QR2 can be used for inclination measurement by detecting changes in tilt and orientation.

  10. Are there any special considerations for PCB layout when using the MMA7268QR2?

    • It is important to follow the manufacturer's guidelines for PCB layout, including proper grounding and signal routing to minimize noise and ensure accurate readings from the accelerometer.