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Freescale Semiconductor
Technical Data
±1.5g - 6g Three Axis Low-g
Micromachined Accelerometer
The MMA7260QT 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 (1.5g/2g/4g/6g)
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
•
High Sensitivity (800 mV/g @ 1.5g)
•
Fast Turn On Time
•
Integral Signal Conditioning with Low Pass Filter
•
Robust Design, High Shocks Survivability
•
Pb-Free Terminations
•
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
ORDERING INFORMATION
Temperature
Device Name
Range
MMA7260QT
–40 to +105°C
MMA7260QR2
–40 to +105°C
© Freescale Semiconductor, Inc., 2005-2008. All rights reserved.
Package
Package
Drawing
1622-02
QFN-16, Tray
1622-02
QFN-16,Tape & Reel
Document Number: MMA7260QT
Rev 5, 03/2008
MMA7260QT
MMA7260QT: XYZ AXIS
ACCELEROMETER
±1.5g/2g/4g/6g
Bottom View
16 LEAD
QFN
CASE 1622-02
Top View
16
15
14 13
g-Select1
1
g-Select2
2
V
3
DD
V
4
SS
5
6
7
8
Figure 1. Pin Connections
Sleep
12
Mode
11
N/C
10
N/C
9
N/C
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Related Manuals for Freescale Semiconductor MMA7260QT
Summary of Contents for Freescale Semiconductor MMA7260QT
- Page 1 ±1.5g - 6g Three Axis Low-g Micromachined Accelerometer MMA7260QT The MMA7260QT 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.
-
Page 2: Electrostatic Discharge (Esd)
ESD. A charge of be followed to avoid exposing the device to discharges which over 2000 volts can accumulate on the human body or may be detrimental to its performance. associated test equipment. A charge of this magnitude can MMA7260QT Sensors Freescale Semiconductor... - Page 3 10. A measure of the device’s ability to reject an acceleration applied 90 from the true axis of sensitivity. 11. Zero-g offset ratiometric error can be typically >20% at V = 2.2 V. Sensitivity ratiometric error can be typically >3% at V = 2.2. Consult factory for additional information MMA7260QT Sensors Freescale Semiconductor...
-
Page 4: Principle Of Operation
Offset ratiometric error can be typically >20% at V = 2.2 V. Sensitivity ratiometric error can be typically >3% at V = 2.2 V. Consult factory for additional information. MMA7260QT Sensors Freescale Semiconductor... -
Page 5: Basic Connections
6. PCB layout of power and ground should not couple 0.1 μF g-Select2 power supply noise. MMA7260QT 7. Accelerometer and microcontroller should not be a 1 kΩ high current path. 8. A/D sampling rate and any external power supply 0.1 μF... - Page 6 @ 0g = 1.65 V @ -1g = 0.85 V @ 0g = 1.65 V @ +1g = 2.45 V @ 0g = 1.65 V * When positioned as shown, the Earth’s gravity will result in a positive 1g output. MMA7260QT Sensors Freescale Semiconductor...
- Page 7 Note: The die pad (flag) is not generally recommended to be soldered down for consumer product application. All dimensions are in mm. Figure 7. PCB Footprint for 16-Lead QFN, 6x6 mm for Consumer Grade Products and Applications MMA7260QT Sensors Freescale Semiconductor...
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Page 8: Pcb Design Guidelines
0.5mm (min) length are recommended near package. Wider trace can be continued after these. Stencil opening (black) for land pad (yellow) = PCB landing pad -0.025mm = 0.525mmx0,475mm Package foot pirnt Figure 9. Stencil Design Guidelines MMA7260QT Sensors Freescale Semiconductor... -
Page 9: Package Dimensions
PACKAGE DIMENSIONS PAGE 1 OF 3 CASE 1622-02 ISSUE B 16-LEAD QFN MMA7260QT Sensors Freescale Semiconductor... - Page 10 PACKAGE DIMENSIONS PAGE 2 OF 3 CASE 1622-02 ISSUE B 16-LEAD QFN MMA7260QT Sensors Freescale Semiconductor...
- Page 11 PACKAGE DIMENSIONS PAGE 3 OF 3 CASE 1622-02 ISSUE B 16-LEAD QFN MMA7260QT Sensors Freescale Semiconductor...
- Page 12 Freescale Semiconductor assume any liability arising out of the application or use of any Japan: product or circuit, and specifically disclaims any and all liability, including without Freescale Semiconductor Japan Ltd.
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