BMA120 Bosch Sensortec, BMA120 Datasheet - Page 2

• Manufacturer Part Number: BMA120
• Description: ACCELEROMETER 3-AXIS SPI/I2C SMD
• Manufacturer: Bosch Sensortec

Specifications of BMA120

• Axis: X, Y, Z
• Acceleration Range: ±2g, 4g, 8g, 16g
• Sensitivity: 16LSB/g, 8LSB/g, 4LSB/g, 2LSB/g
• Voltage - Supply: 1.62 V ~ 1.98 V
• Output Type: Digital
• Bandwidth: 50Hz ~ 1kHz Selectable
• Interface: I²C, SPI
• Mounting Type: Surface Mount
• Package / Case: 12-LGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 0 273 141 070; 828-1015-2

Specifi cation subject to change without notice
© Bosch Sensortec GmbH reserves all rights in the event of industrial property rights. We reserve all rights of disposal such as copying and passing on
2
Pin confi guration (top view)
Pin
No.
1
2
3
4
5
6
7
8
9
10
11
12
to third parties. BOSCH and the symbols are registered trademarks of Robert Bosch GmbH, Germany.
Pin 1
identifi er
Bosch Sensortec
Name
CAPX
V
GND
INT
CSB
PS
SCL
SCK
SDO
SDA,
SDI,
SDO
V
CAPZ
CAPY
DD
DDD
CAPX
GND
CSB
V
INT
DD
1
2
3
4
5
Function
Do not connect! (recommended)
Power supply analog
Shared ground
Interrupt output
SPI chip-select
Protocol select pin
I
SPI serial data output
I
Power supply digital
Do not connect! (recommended)
Do not connect! (recommended)
2
2
C(SCL) / SPC(SCK) serial clock
C / SPI serial data in/out
(pads not visible)
BMA120
top view
CAPY
BMA120
12
PS
6
11
10
9
8
7
CAPZ
V
SD
SDO
SC
DDD
X
X
Following motion detection scenarios are supported
by the interrupt engine:
The interrupts can be confi gured by the user and thus
perfectly support the integration of the BMA120 into
the user’s system environment.
Another important feature of the BMA120 acceleration
sensor is the power management module. This modu-
le allows for optimizing the sensor’s power consump-
tion in-line with the specifi c user requirements. Thus,
it is not necessary to operate the sensor at full power
for all application scenarios all the time. For some
uses cases the power consumption drastically shrinks
to just a fraction of what would be required in full
performance mode.
The power modes the BMA120 supports are:
The BMA120 also features self-test capability, allowing
for testing of the complete signal evaluation path
including the micromachined sensor structure and
the evaluation ASIC.
Mode
Power-off
Suspend
Low-power (sleep)
Full performance
Any-motion (slope) detection
Tap sensing
Orientation change recognition
Low-g / high-g detection
Data-ready
Self-wake-up
Doc.-Number: BST-BMA120-FL000-00 / Version_1.1_102009
Headquarters
Bosch Sensortec GmbH
Gerhard-Kindler-Strasse 8
72770 Reutlingen · Germany
Telephone [phone]
Fax [phone]
[e-mail]
www.bosch-sensortec.com
Wake-up
time
only 1 ms
≤ 400 µs
≤ 400 µs
–
Current
consumption
@ 1.8 V V
0 µA
1 µA (typ.)
2 µA (typ.)
430 µA
DD