MMA745xL: ±2g/±4g/±8g, Low g, Digital Accelerometer ARCHIVED

Overview

Archived content is no longer updated and is made available for historical reference only.

The MMA745xL series is a digital output (I²C/SPI), low-power, low-profile capacitive micromachined accelerometer featuring signal conditioning, a low pass filter, temperature compensation, self-test configurable to detect zero-g through interrupt pins (INT1 or INT2) and pulse detect for quick motion detection. Zero-g offset and sensitivity are factory set and require no external devices. The zero-g offset can be customer calibrated using assigned zero-g registers and g-select which allows for command selection for three acceleration ranges (2g/4g/8g). The MMA745xL series includes a standby mode that makes it ideal for handheld battery-powered electronics.

Please refer to Application Note AN3484 for soldering guidelines.

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Features

Self-test for z-axis
Low-voltage operation: 2.4 – 3.6-volts
User assigned registers for offset calibration
Programmable threshold interrupt output
Level detection for motion recognition (shock, vibration, freefall)
Pulse detection for single or double pulse recognition
Sensitivity (64 LSB/g @ 2g and @ 8g in 10-bit mode)
Selectable Sensitivity (±2g, ±4g, ±8g) for 8-bit mode
Robust design, high shock survivability (5,000g)
Environmentally preferred product
Low cost
Digital output (I²C/SPI)
3 mm x 5 mm x 1 mm LGA-14 package
RoHS compliant

MoreLess

Features

Self-test for z-axis
Low-voltage operation: 2.4 – 3.6-volts
User assigned registers for offset calibration
Programmable threshold interrupt output
Level detection for motion recognition (shock, vibration, freefall)
Pulse detection for single or double pulse recognition
Sensitivity (64 LSB/g @ 2g and @ 8g in 10-bit mode)
Selectable Sensitivity (±2g, ±4g, ±8g) for 8-bit mode
Robust design, high shock survivability (5,000g)
Environmentally preferred product
Low cost
Digital output (I²C/SPI)
3 mm x 5 mm x 1 mm LGA-14 package
RoHS compliant

Data Sheets

Application Notes

MMA745xL Acceleration Sensor Block Diagram

MMA745xL Acceleration Sensor Block Diagram

MMA745xL Acceleration Sensor Block Diagram

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