MMA8450Q (Xtrinsic Low-power, 3-axis Xtrinsic Accelerometer) - www.tme.vn - Linh kien dien tu, Kit Phat trien, Máy nap, Dụng cụ...

Overview

The MMA8450Q accelerometer is an intelligent low power and noise, 3 x 3 x 1 mm capacitive micromachined accelerometer featuring 12 bits of resolution. This accelerometer is packed with many flexible user programmable embedded functions that are available with two configurable interrupt pins. MMA8450Q has user selectable full scales of ±2g/±4g/±8g and it is capable of measuring accelerations with an Output Data Rate (ODR( of 400 Hz, 200 Hz, 100 Hz, 50 Hz, 12.5 Hz, and 1.563 Hz. These output data rates correspond to sample intervals from 2.5 ms to 640 ms. The device can be configured to generate inertial wake-up interrupt signals when a programmable acceleration threshold is crossed on any one of the three sensed axes. Acceleration and time thresholds of interrupt generators are programmable by the end user.MMA8450Q is available in a plastic QFN package and it is guaranteed to operate over the extended temperature range of -40°C to +85°C.

Features

1.71 V to 1.89 V supply voltage
±2g/±4g/±8g dynamically selectable full-scale
Output Data Rate (ODR) from 400 Hz to 1.563 Hz
400 µg/vHz noise at normal mode ODR = 400 Hz
12-bit digital output
I2C digital output interface (operates up to 400 kHz Fast Mode)
Programmable 2 interrupt pins for 8 interrupt sources
Embedded 4 channels of motion detection
- Freefall or motion detection: 2 channels
- Pulse Detection: 1 channel
- Transient Detection: 1 channel
Orientation (Portrait/Landscape) detection with hysteresis compensation
Automatic ODR change for auto-wake and return-to-sleep
32 sample FIFO
Self-Test
10,000 g high shock survivability
RoHS compliant

**Specifications**
Manufacturer	Freescale Semiconductor
Product Category	Sensors
Family	Accelerometers
RoHS	Yes
Sensing Axis	X, Y, Z
Acceleration	2 g, 4 g, 8 g
Sensitivity	0.976 mg/digit, 1.953 mg/digit, 3.906 mg/digit
Package / Case	QFN-16
Output Type	Digital
Digital Output - Number of Bits	12 bit
Supply Voltage	1.71 V ~ 1.89 V
Supply Current	3 uA
Shutdown	Yes
Operating Temperature	-40°C ~ +85°C
Packaging	Tray
Add to www.tme.vn	Saturday, July 30, 2011