NXP USA Inc.
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MMA7261Q
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MMA7261Q

Product Overview

The MMA7261Q is a three-axis low-g accelerometer belonging to the category of MEMS (Micro-Electro-Mechanical Systems) sensors. It is widely used in various applications that require motion sensing and tilt measurement. The device is known for its compact size, high sensitivity, and low power consumption. It is typically available in small surface-mount packages and is designed to provide accurate acceleration measurements.

Basic Information

  • Category: MEMS Accelerometer Sensor
  • Use: Motion Sensing, Tilt Measurement
  • Characteristics: Compact Size, High Sensitivity, Low Power Consumption
  • Package: Surface-Mount
  • Essence: Accurate Acceleration Measurements
  • Packaging/Quantity: Typically Available in Small Quantities

Specifications

  • Operating Voltage: 2.2V - 3.6V
  • Sensitivity: Selectable ±1.5g, ±2g, ±4g, or ±6g Full Scale Range
  • Output Type: Analog Voltage Output
  • Low Power Consumption: Typically 400μA
  • Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The MMA7261Q features a standard pin configuration with the following connections: 1. Vcc (Power Supply) 2. GND (Ground) 3. XOUT (X-Axis Output) 4. YOUT (Y-Axis Output) 5. ZOUT (Z-Axis Output) 6. GSEL (Sensitivity Selection) 7. ST (Self-Test)

Functional Features

  • Selectable Sensitivity Levels for Different Applications
  • Self-Test Functionality for Diagnostic Purposes
  • Low Power Consumption for Extended Battery Life
  • Analog Voltage Output for Compatibility with Various Microcontrollers

Advantages and Disadvantages

Advantages

  • High Sensitivity for Precise Motion Detection
  • Compact Size for Integration into Small Form Factor Devices
  • Low Power Consumption for Energy-Efficient Operation

Disadvantages

  • Limited Full Scale Range Options Compared to Some Competing Models
  • Analog Output Requires Additional Signal Conditioning for Digital Processing

Working Principles

The MMA7261Q operates based on the principles of capacitive sensing. When subjected to acceleration, the sensor's internal microstructures move, 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 MMA7261Q finds extensive use in applications such as: - Inertial Measurement Units (IMUs) for Drones and Robotics - Gaming Controllers for Motion Sensing - Wearable Fitness Trackers for Activity Monitoring - Vehicle Stability Control Systems for Tilt Measurement

Detailed and Complete Alternative Models

Some alternative models to the MMA7261Q include: - ADXL335 from Analog Devices - LIS3DH from STMicroelectronics - KX022 from Kionix

In conclusion, the MMA7261Q MEMS accelerometer sensor offers a compact and sensitive solution for motion sensing and tilt measurement applications. With its versatile features and wide application field plans, it serves as a reliable choice for various electronic designs requiring accurate acceleration measurements.

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Liste 10 almindelige spørgsmål og svar relateret til anvendelsen af MMA7261Q i tekniske løsninger

  1. What is the MMA7261Q accelerometer used for?

    • The MMA7261Q accelerometer is used to measure acceleration in various technical solutions, such as tilt sensing, motion detection, and vibration monitoring.

  2. What is the operating voltage range of the MMA7261Q?

    • The operating voltage range of the MMA7261Q is typically 2.2V to 3.6V.

  3. How many axes does the MMA7261Q accelerometer measure?

    • The MMA7261Q measures acceleration along three axes (X, Y, and Z).

  4. What is the sensitivity range of the MMA7261Q?

    • The sensitivity range of the MMA7261Q can be configured to ±1.5g, ±2g, or ±6g.

  5. Can the output of the MMA7261Q be analog or digital?

    • The output of the MMA7261Q is analog and requires an external ADC for digital processing.

  6. What are some common applications of the MMA7261Q in technical solutions?

    • Common applications include orientation detection in mobile devices, impact detection in sports equipment, and vibration monitoring in industrial machinery.

  7. Does the MMA7261Q require external signal conditioning?

    • The MMA7261Q requires minimal external signal conditioning, such as filtering and amplification, to improve accuracy and noise performance.

  8. What is the typical power consumption of the MMA7261Q?

    • The typical power consumption of the MMA7261Q is relatively low, making it suitable for battery-powered applications.

  9. Is the MMA7261Q suitable for high-shock environments?

    • The MMA7261Q is designed to withstand moderate shock and vibration levels, but may not be suitable for high-shock environments without additional protection.

  10. Can the output sensitivity of the MMA7261Q be adjusted?

    • Yes, the output sensitivity of the MMA7261Q can be adjusted by selecting different resistor values according to the datasheet specifications.