I have always wanted to experiment with an accelerometer. Saddly these days everything is being shrunk into things eyes can barely see. Here is a guide to soldering the MMA7260 Micromachined Accelerometer by Freescale Semiconductors. This device is only available in the 16-LEAD QFN package. There is a way to use the device even if you do not have a custom PCB with a QFN layout. |
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. 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 |
List Of Requirements :
- MMA7260 3 Axis Accelerometer from Freescale
- A 4x6 hole veroboard
- 2x4 pin pinstrip
- thin single strands of multicore wire
- solder and a thin tip iron
- Tape
- a set of stable hands
- patience
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Credits :
- Freescale Semiconductors- for sending me the samples of such a wonderfull device
- Fedde Le Grand - "Take No Shhhhh" the song i had playing in the background while soldering
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Warning: The material on this page should not be put to any commercial use without the concent of the Author. (21 March. 2007)
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