BMA140 Bosch Sensortec, BMA140 Datasheet - Page 13

• Manufacturer Part Number: BMA140
• Description: 3-AXIS ACCELEROMETER ANALOG I/F
• Manufacturer: Bosch Sensortec

Specifications of BMA140

• Axis: X, Y, Z
• Acceleration Range: ±4g
• Sensitivity: 300mV/g
• Voltage - Supply: 1.8 V ~ 3.5 V
• Output Type: Analog
• Bandwidth: 1.5kHz
• Interface: Parallel
• Mounting Type: Surface Mount
• Package / Case: 12-LGA
• For Use With: DM240021 - KIT STARTER MPLAB FOR PIC24H828-1010 - BMA140 DAUGHTERCARD FOR DEV KIT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 828-1001-2

4.6
If the sensor is accelerated into the indicated directions, the corresponding channels will deliver
a positive acceleration signal (dynamic acceleration).
Example: If the sensor is at rest or at uniform motion in a gravity field according to the figure
given below, the output signals are:
The following table lists all corresponding output signals on Ax, Ay, and Az while the sensor is
at rest or at uniform motion in a gravity field under assumption of a top down gravity vector as
shown above.
Rev. 1.1
© Bosch Sensortec GmbH reserves all rights even in the event of industrial property rights. We reserve all rights of disposal such
as copying and passing on to third parties. BOSCH and the symbol are registered trademarks of Robert Bosch GmbH, Germany.
Note: Specifications within this document are subject to change without notice.
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Polarity of the acceleration output
Sensor Orientation
(gravity vector )
± 0g for the x channel
± 0g for the y channel
+ 1g for the z channel
Output Signal Ax
Output Signal Ay
Output Signal Az
+x
-1g / 1.2V
0g / 1.5V
0g / 1.5V
Triaxial, analog acceleration sensor
top side
0g / 1.5V
0g / 1.5V
+1g /
+z
1.8V
Data sheet
Page 13
BMA140
0g / 1.5V
0g / 1.5V
+1g /
1.8V
gravity vector
-1g / 1.2V
0g / 1.5V
0g / 1.5V
0g / 1.5V
0g / 1.5V
upright
+1g /
1.8V
+y
Bosch Sensortec
04 April 2008
-1g / 1.2V
0g / 1.5V
0g / 1.5V
upright