SCA3060-D01
Data Sheet
SCA3060-D01 DIGITAL LOW POWER ACCELEROMETER
FOR AUTOMOTIVE APPLICATIONS
Features
3,0 V – 3.6 V supply voltage
2 g measurement range
16 bit SPI digital interface
Selectable frequency response
Very low current consumption
(3.3 V, 150 A typ)
64 samples/axis buffer memory for output
acceleration data and advanced features
enable significant power and resource savings
at system level
Interrupt signal triggered by motion
Size 7.6 x 3.3 x 8.6 mm (w x h x l)
Proven capacitive 3D-MEMS technology
High shock durability
RoHS compliant / lead free soldering
AEC Q-100 qualified
C/V
Oscill ator
&
clock
Reference
An alog
calibrat ion
&
ADC
Non Vola tile
Memory
DEMUX
1:3
Temperat ure
se nsor
Applications
SCA3060-D01 is targeted to automotive
applications such as
Inertial navigation
Vehicle alarms
Inclination sensing
Motion activation
Black box systems
Low-pass
Filter
Decimation
Low-pass
Filter
Decimation
Low-pass
Filter
Dec imation
Motion
detector
Coordinate
Mapping
and
Calibrat ion
SCK
SPI
i/f
M ISO
MOSI
CSB
Ring
Buffer
Control
&
INT
INT
Figure 1 SCA3060-D01 Block Diagram
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SCA3060-D01
Performance Characteristics 1)
Parameter
Condition
Units
Min
Analog and digital Vdd
Operating temperature **
Current consumption *
3)
Acceleration range *
4)
Total offset error
6)
Sensitivity *
Total Sensitivity error *
7)
Non-Linearity **
8)
Cross-Axis sensitivity **
9)
Bandwidth **
Noise **
10)
Output data rate **
11)
Start up time **
Output load **
SPI clock rate **
*
**
1)
2)
3)
4)
6)
7)
8)
9)
10)
2)
Reset
Measurement / MD
mode
Nominal
-40 ... +105 °C
Measurement mode
Wide band mode
Measurement mode
Wide band mode
Measurement mode
Wide band mode
Typ
Max
3.0
-40
-
3.3
<9
150
3.6
105
-
V
°C
A
A
-200
-
±2
±200
1000
±2%
±1
±3
9
35
9
16
50
100
200
-
+200
±4%
±3%
-
g
mg
Count/g
%
% FS
%
Hz
Hz
mg RMS
mg RMS
Hz
Hz
ms
pF
kHz
-
-
-
35
325
100% tested in production
Qualified during product validation
Typical values are not guaranteed.
Includes the current through the internal 400 k pull-up resistor connected to digital I/O Vdd.
Range defined as x2 y 2 z 2 2 g . The measuring range is tested on sensing element level. FS = 2g.
Includes effects over supply voltage, temperature and life time
Sensitivity = {Count(+1g) - Count(-1g)}/2 [Count/g].
From straight line through sensitivity calibration (+1g, -1g) points.
The cross-axis sensitivity determines how much acceleration, perpendicular to the measuring axis,
couples to the output. The total cross-axis sensitivity is the geometric sum of the sensitivities of
the two axes which are perpendicular to the measuring axis. The angular alignment error
between X, Y and Z axis is included into the cross axis sensitivity.
Frequency responses according to Figure 4.
Average noise/axis over the measurement bandwidth defined as 1 (n 2 n 2 n 2 ) , where nx, ny and nz are
3
11)
1)
x
y
z
the measured signal's standard deviation due to noise in x, y and z directions.
Settling error less than 1% of FS.
VTI Technologies Oy
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SCA3060-D01
Figure 2 Accelerometer measuring directions
figure 3 housing dimensions
Figure 4 Frequency response of SCA3060-D01 in measurement mode (left) and in wide band mode (right)
VTI Technologies Oy
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SCA3060-D01
Document Change Control
Author
Approved by
Tommi Vilenius
Department/Role
Product Manager
Rev.
0
A1
B1
C
Date
5.12.2008
23.1.2009
4.3.2009
21.9.2009
D
21.11.2011
VTI Technologies Oy
www.vti.fi
Change Description
Preliminary release
Initial release
Changes to low power component
Performance values updated, pin
naming updated.
Product description modified
Doc. Nr. 82 1040 00 D
Author
Reviewed by
TVi
VNu, TOS
Tvi
TOS, JL
TVi
JUP
ECN
4/3
RevD