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Freescale Semiconductor Electronic Components Datasheet

MMA7261Q Datasheet

Three Axis Low-g Micromachined Accelerometer

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MMA7261Q pdf
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Freescale Semiconductor
Technical Data
±2.5g - 10g Three Axis Low-g
Micromachined Accelerometer
The MMA7261Q low cost capacitive micromachined accelerometer
features signal conditioning, a 1-pole low pass filter, temperature
compensation and g-Select which allows for the selection among 4
sensitivities. Zero-g offset full scale span and filter cut-off are factory set and
require no external devices. Includes a Sleep Mode that makes it ideal for
handheld battery powered electronics.
Features
• Selectable Sensitivity (2.5g/3.3g/6.7g/10g)
• Low Current Consumption: 500 µA
• Sleep Mode: 3 µA
• Low Voltage Operation: 2.2 V – 3.6 V
• 6mm x 6mm x 1.45mm QFN
• Fast Turn On Time
• High Sensitivity (2.5 g)
• Integral Signal Conditioning with Low Pass Filter
• Robust Design, High Shocks Survivability
• Environmentally Preferred Package
• Low Cost
Typical Applications
• HDD MP3 Player: Freefall Detection
• Laptop PC: Freefall Detection, Anti-Theft
• Cell Phone: Image Stability, Text Scroll, Motion Dialing, E-Compass
• Pedometer: Motion Sensing
• PDA: Text Scroll
• Navigation and Dead Reckoning: E-Compass Tilt Compensation
• Gaming: Tilt and Motion Sensing, Event Recorder
• Robotics: Motion Sensing
Device Name
MMA7261Q
MMA7261QR2
ORDERING INFORMATION
Temperature
Range
Package
Drawing
Package
– 20 to +85°C
98ASA10651D
QFN-16, Tube
– 20 to +85°C
98ASA10651D QFN-16,Tape & Reel
MMA7261Q
Rev 2.0, 3/2006
MMA7261Q
MMA7261Q: XYZ AXIS
ACCELEROMETER
± 2.5g/3.3g/6.7g/10g
Bottom View
16 LEAD
QFN
98ASA10651D
Top View
16 15 14 13
g-Select1 1
12
Sleep
Mode
g-Select2 2
11 N/C
VDD 3
10 N/C
VSS 4
9 N/C
5678
Figure 1. Pin Connections
© Freescale Semiconductor, Inc., 2006. All rights reserved.


Freescale Semiconductor Electronic Components Datasheet

MMA7261Q Datasheet

Three Axis Low-g Micromachined Accelerometer

No Preview Available !

MMA7261Q pdf
g-Select1
g-Select2
Sleep Mode
G-Cell
Sensor
VDD
Oscillator
Clock
Generator
C to V
Converter
Gain
+
Filter
Control Logic
EEPROM Trim Circuits
X-Temp
Comp
Y-Temp
Comp
Z-Temp
Comp
XOUT
YOUT
ZOUT
VSS
Figure 2. Simplified Accelerometer Functional Block Diagram
Table 1. Maximum Ratings
(Maximum ratings are the limits to which the device can be exposed without causing permanent damage.)
Rating
Symbol
Value
Maximum Acceleration (all axis)
Supply Voltage
Drop Test(1)
Storage Temperature Range
1. Dropped onto concrete surface from any axis.
gmax
VDD
Ddrop
Tstg
±2000
–0.3 to +3.6
1.8
–40 to +125
Unit
g
V
m
°C
ELECTRO STATIC DISCHARGE (ESD)
WARNING: This device is sensitive to electrostatic
discharge.
Although the Freescale accelerometer contains internal
2000 V ESD protection circuitry, extra precaution must be
taken by the user to protect the chip from ESD. A charge of
over 2000 volts can accumulate on the human body or
associated test equipment. A charge of this magnitude can
alter the performance or cause failure of the chip. When
handling the accelerometer, proper ESD precautions should
be followed to avoid exposing the device to discharges which
may be detrimental to its performance.
MMA7261Q
2
Analog Integrated Circuit Device Data
Freescale Semiconductor


Part Number MMA7261Q
Description Three Axis Low-g Micromachined Accelerometer
Maker Freescale Semiconductor
Total Page 8 Pages
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