The MMA1252 is a single-axis, low-g micromachined accelerometer from Freescale Semiconductor, now NXP. This sensor is designed for measuring static acceleration (gravity) as well as dynamic acceleration, making it suitable for a variety of applications requiring tilt, motion, or vibration sensing.

Applications

• Tilt sensing: Used for detecting the angle of an object relative to gravity.
• Motion detection: Employed in applications where movement needs to be detected, such as security systems or activity monitoring.
• Vibration monitoring: Can be used to measure vibration levels in machinery or other equipment.
• Gaming controllers: Used to detect motion and orientation in gaming applications.
• Robotics: Provides feedback on robot orientation and movement.

Features

• Single-axis accelerometer: Measures acceleration along one axis.
• Low-g sensitivity: Designed to measure small accelerations accurately.
• Analog output: Provides an analog voltage proportional to the measured acceleration.
• Small size: Compact design allows for easy integration into various applications.
• Low power consumption: Suitable for battery-powered applications.
• RoHS compliant: Meets environmental regulations for hazardous substances.

Benefits

• Accurate acceleration measurement: Provides reliable and precise acceleration data.
• Easy integration: Simple analog output simplifies interfacing with microcontrollers and other systems.
• Low power operation: Extends battery life in portable applications.
• Robust design: Resistant to shock and vibration.
• Cost-effective solution: Provides a good balance of performance and price.

Additional Details

The MMA1252 operates from a 5V power supply. The output voltage is proportional to the acceleration along the sensitive axis. The sensitivity is typically around 800 mV/g. The bandwidth is typically around 50 Hz. The operating temperature range is typically -40°C to +105°C. The device is available in a small surface-mount package (SOIC-8). The device is commonly used in consumer electronics, automotive systems, and industrial equipment. The typical quiescent current is around 7 mA. An external low-pass filter may be used to reduce noise and improve accuracy. The sensor can be calibrated to compensate for offset and sensitivity variations.