Sourcing guide:
MEMS sensor devices:
Selection specifications, vendors and products
Introduction: Here below we
provide list of various MEMS components for electronics
design. MEMS vendors specifications tables, and the further
links are provided in helping to find right MEMS device
for your application.
MEMS - Key products/applications: Due to the
enormous advantages of MEMS, they are useful in various
fields like Data processing, Automotive, Consumer electronics,
Wireless/Wired communications, Aerospace, Defense, Medical
electronics, Biotechnology, etc.,
Types of MEMS products covered in this study are:
· MEMS Accelerometers
·MEMS Gyroscopes
· MEMS Microphones
· MEMS Oscillators
Key Manufacturers of MEMS Devices include:
· Analog Devices, Inc.
· STMicroelectronics
· Bosch-Sensortec
· Colibrys
· Dytran Instruments
· Epson Toyocom
· Freescale Semiconductors
· Gladiator Technologies, Inc.
· Hewlett Packard
· Infineon
· MEMSIC Inc.
· Murata Manufacturing Co., Ltd(including VTI Technologies)
· RoHM Kionix
· Sensonor Technologies AS
· SignalQuest, Inc.
· Silicon Designs
MEMS Accelerometers:
Accelerometers are the devices used to measure acceleration
and the force producing it. MEMS accelerometers are widely
used in cars for airbag deployment and in consumer electronics
applications such as smart phones, gaming devices for sensing
motion. MEMS Accelerometer are capable of measuring constant,
transient and periodic acceleration.
Key Specifications
Output type: Selecting this attribute depends on
the hardware being interfaced. Analog output is a continuous
voltage that is proportional to the acceleration and digital
output is a pulse width modulation (PWM).
Number of axis: Devices capable of measurement in
one, two or three axes.
Acceleration due to gravity: One 'g' is the gravity
on earth: 32.2 ft/sec2 or 9.8m/sec2 or 386 in/sec2.
Sensitivity: Is the output voltage produced by a
certain force measured in g's
Dynamic Range: Is the +/- maximum amplitude that
the accelerometer can measure before distorting or clipping
the output signal.
Bandwidth: The amount of times per second you can
take a reliable acceleration reading. For slow moving tilt
sensing applications, a bandwidth of 50 Hz is sufficient.
Shock resistance or limit: This is the maximum shock
that devices must be able to handle. This explains how many
g's of shock an accelerometer can withstand.
Operating Temperature: The temperature ranges over
which devices must operate.
Package: Package style, terminal style, number of
terminals, etc.,
Parts selection table from key competitors
Manufacturer Name |
Manufacturer Part Number |
Acceleration Range |
Shock |
MEMSIC Inc. |
MXC6226XC |
+/-2g |
50,000g |
Analog Devices, Inc. |
ADXL206HDZ |
+/-5g |
3,500g |
Kionix |
KXTJ2 |
2g, 4g, 8g |
|
VTI Technologies |
CMA3000-D01 |
±2g, 8g |
|
Bosch Sensortec |
BMA280 |
±2 g, ±4 g, ±8 g, ±16 g |
10,000g |
STMicroelectronics |
LIS2DM |
±2, ±4, ±8, and ±16 g |
|
Gladiator Technologies, Inc. |
A40-15-200 |
2g to 15g |
500g |
Bosch Sensortec |
BMA140 |
+/-4g |
10,000g |
Analog Devices, Inc. |
ADXL346ACCZ-RL |
±2g, 4g, 8g, 16g |
10,000g |
STMicroelectronics |
LIS3DSH |
±2g/±4g/±8g/±16g |
10,000g |
Analog Devices, Inc. |
ADXL278 |
+/-70g |
|
Freescale Semiconductors |
MMA6527KW |
+/-105g |
|
Freescale Semiconductors |
MMA6556KW |
+/-105g |
|
SignalQuest, Inc. |
SQ-XLD-3X |
1.7g, 5g, 18g, 35g, 50g, 70g |
500g |
Manufacturer Part Number |
Size |
Operating Temperature |
Voltage Supply |
MXC6226XC |
1.2 x 1.7 x 1.0 mm |
-20 to +70 Deg C |
2.5 V to 5.5 V |
ADXL206HDZ |
13 × 8 × 2 mm |
-40 to +175 Deg C |
|
KXTJ2 |
2 × 2 × 0.9 mm |
-40 to +85 Deg C |
1.8 V to 3.6 V |
CMA3000-D01 |
2 x 2 x 0.95 mm |
-40 to +85 Deg C |
1.7 V to 3.6 V |
BMA280 |
2 x 2 x 0.95 mm |
-40 to 85 Deg C |
1.62 V to 3.6 V |
LIS2DM |
2 x 2 x 1 mm |
-40 to +85 Deg C |
1.71 V to 3.6 V |
A40-15-200 |
25.4 x 18.4 mm |
-40 to +85 Deg C |
|
BMA140 |
3 x 3 x 0.9 mm |
-40 to 85 Deg C |
1.8 V to 3.5 V |
ADXL346ACCZ-RL |
3 x 3 x 0.95 mm |
-40 to 85 Deg C |
1.7 V to 2.75 V |
LIS3DSH |
3 x 32 x 1 mm |
-40 to +85 Deg C |
1.71 V to 3.6 V |
ADXL278 |
5 x 5 mm |
-40 to 105 Deg C |
4.75 V to 5.25 V |
MMA6527KW |
|
|
|
MMA6556KW |
|
|
|
SQ-XLD-3X |
|
-40 to +85 Deg C |
3.5 V to 5.8 V |
Links to download MEMS accelerometers datasheets of above
parts:
http://investor.memsic.com/releasedetail.cfm?releaseid=619035
http://www.analog.com/static/imported-files/data_sheets/ADXL206.PDF
http://www.kionix.com/accelerometers/accelerometer-KXTJ2.html
http://www.vti.fi/sites/default/files/documents/cma3000_d01_datasheet_8277800a.03.pdf
http://www.bosch-sensortec.com/content/language1/downloads/BST_BMA280_Flyer.pdf
http://www.st.com/internet/com/TECHNICAL_RESOURCES/TECHNICAL_LITERATURE/DATASHEET/DM00043231.pdf
http://www.gladiatortechnologies.com/DATASHEET/A40_Accelerometer_datasheet_051911.pdf
http://www.bosch-sensortec.com/content/language1/downloads/BMA140_DataSheet_Rev1.1_04APR2008.pdf
http://www.analog.com/static/imported-files/data_sheets/ADXL346.pdf
http://www.st.com/internet/com/TECHNICAL_RESOURCES/TECHNICAL_LITERATURE/DATASHEET/DM00040962.pdf
http://www.analog.com/static/imported-files/data_sheets/ADXL278.pdf
http://investors.freescale.com/phoenix.zhtml?c=175261&p=irol-newsArticle_print&ID=1624777&highlight=
http://investors.freescale.com/phoenix.zhtml?c=175261&p=irol-newsArticle_print&ID=1624777&highlight=
http://www.signalquest.com/datasheets/SQ-XLD_2%20and%203%20Axis%20DC%20Accelerometer%20with%20Serial%20Interface%20Datasheet.pdf
New products highlights:
- MEMSIC's "MXC6226XC" is the smallest and
lowest priced MEMS Accelerometer for +/- 2g acceleration
range. This component also features the maximum shock
of 50,000g.
- Kionix's latest component "KXTJ2" is the smallest
MEMS Accelerometer with a dimension of "2 ×
2 × 0.9 mm". The Manufacturer also suggests
that this component is optimized for mobiles & tablets
that consumes very low power.
- Analog Devices "ADXL206HDZ" may withstand
a temperature of 175 Deg Cel. Also, Analog Devices offers
a wide variety of MEMS Accelerometers for Digital, Analog
& SPI outputs in 1, 2, & 3 Axes.
- There's an improvement in the MEMS technology due to
which the MEMS die size decreased drastically in the recent
couple of years which in turn reduced the size and power
consumption of the MEMS devices.
- Industrial applications such as oil exploration, monitoring
vibration, etc., can use accelerometers with lower Acceleration
Sensitivity (g's) whereas components with higher Acceleration
Sensitivity (g's) are needed for crash detection in automotive
applications and drop protection in laptops. Consumer,
aerospace & defense applications need medium Acceleration
Sensitivity (g's).
- Higher the Acceleration Sensitivity (g's), higher the
cost of the MEMS Accelerometer.
- Low output accelerometers are used to measure high
vibration levels while high output accelerometers are
used to measure low level vibrations.
- For Analog output types, the impedance/buffering of
the MEMS accelerometer typically should be less than 10K
Ohm.
Click below for component selection tables on:
MEMS
Gyroscopes, Microphones and Oscillators
Further Resources on MEMS
http://memscentral.com/center-init.htm
http://www.memsindustrygroup.org./
http://www.coventor.com
http://memsblog.wordpress.com/
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