NXP USA Inc.
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MMA7361LCR2
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MMA7361LCR2

Product Overview

Category

The MMA7361LCR2 is a three-axis low-g accelerometer sensor.

Use

It is commonly used in applications requiring motion and tilt sensing, such as robotics, gaming controllers, and motion detection systems.

Characteristics

  • Low power consumption
  • Wide voltage range (2.2V to 3.6V)
  • Low profile (0.9mm)
  • Low zero-g offset
  • High sensitivity (800mV/g at 1.5g)

Package

The MMA7361LCR2 is available in a small, lead-free, 14-pin LGA package.

Essence

The essence of the MMA7361LCR2 lies in its ability to provide accurate and reliable acceleration measurements in a compact form factor.

Packaging/Quantity

It is typically sold in reels containing 250 units.

Specifications

  • Sensing Range: ±1.5g
  • Sensitivity: 800mV/g
  • Operating Voltage: 2.2V to 3.6V
  • Operating Temperature Range: -40°C to +85°C
  • Output: Analog voltage proportional to acceleration

Detailed Pin Configuration

| Pin Number | Name | Description | |------------|------------|------------------------------| | 1 | GND | Ground | | 2 | XOUT | X-axis output | | 3 | YOUT | Y-axis output | | 4 | ZOUT | Z-axis output | | 5 | VDD | Power supply (2.2V to 3.6V) | | 6 | ST | Self-test input | | 7 | GSEL | Sensitivity select input | | 8 | SLEEP | Sleep mode control input | | 9-14 | NC | No connection |

Functional Features

  • Self-test capability for system verification
  • Selectable sensitivity for different measurement ranges
  • Sleep mode for power conservation
  • Low zero-g offset for accurate measurements

Advantages and Disadvantages

Advantages

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

Disadvantages

  • Limited sensing range compared to some other accelerometers
  • Analog output requires external ADC for digital processing

Working Principles

The MMA7361LCR2 operates based on the principle of capacitive micro-machined accelerometer technology. When subjected to acceleration, the mass within the sensor moves, causing a change in capacitance. This change is then converted into an analog voltage output proportional to the applied acceleration.

Detailed Application Field Plans

The MMA7361LCR2 finds applications in various fields including: - Robotics: for motion and tilt sensing in robotic systems - Gaming: for motion-based gaming controllers - Motion Detection: for detecting movement in security and surveillance systems

Detailed and Complete Alternative Models

Some alternative models to the MMA7361LCR2 include: - ADXL335: A similar three-axis accelerometer with analog output - LIS3DH: A digital three-axis accelerometer with I2C/SPI interface

In conclusion, the MMA7361LCR2 is a versatile and compact accelerometer sensor suitable for various motion and tilt sensing applications, offering accurate measurements and low power consumption.

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Перелічіть 10 типових запитань і відповідей, пов’язаних із застосуванням MMA7361LCR2 у технічних рішеннях

  1. What is the MMA7361LCR2 accelerometer used for?

    • The MMA7361LCR2 accelerometer is commonly used to measure acceleration in various technical solutions, such as motion detection, tilt sensing, and vibration monitoring.

  2. How does the MMA7361LCR2 communicate with a microcontroller?

    • The MMA7361LCR2 can communicate with a microcontroller using analog voltage outputs or through digital interfaces such as SPI or I2C.

  3. What is the operating voltage range of the MMA7361LCR2?

    • The MMA7361LCR2 operates within a voltage range of 2.2V to 3.6V, making it suitable for low-power applications.

  4. Can the MMA7361LCR2 be used for impact detection?

    • Yes, the MMA7361LCR2 can be utilized for impact detection by measuring sudden changes in acceleration beyond a predefined threshold.

  5. What are the sensitivity levels of the MMA7361LCR2?

    • The MMA7361LCR2 offers selectable sensitivity levels of ±1.5g, ±2g, and ±6g, allowing for flexibility in different applications.

  6. Is the MMA7361LCR2 suitable for battery-powered devices?

    • Yes, the low operating voltage and power consumption make the MMA7361LCR2 well-suited for battery-powered devices and portable applications.

  7. Can the MMA7361LCR2 be used for orientation detection?

    • Yes, the MMA7361LCR2 can be employed for orientation detection by measuring the direction and magnitude of gravitational forces.

  8. What are the typical output formats of the MMA7361LCR2?

    • The MMA7361LCR2 provides analog voltage outputs proportional to the measured acceleration along each axis (X, Y, Z).

  9. Does the MMA7361LCR2 require external signal conditioning?

    • The MMA7361LCR2 includes built-in signal conditioning circuitry, reducing the need for additional external components.

  10. Are there any specific mounting considerations for the MMA7361LCR2?

    • To ensure accurate measurements, the MMA7361LCR2 should be mounted securely and oriented properly relative to the intended axis of measurement.