SCA3100-D04
VTI T echnologi es Oy 1/5
www.vti.fi Doc. Nr. 82 688 00 E
SCA3100-D04 3-AXIS HIGH PERFORMANCE A CCELEROMETE R WITH
DIGITAL SPI INTERFACE
Features
• 3.3V supply voltage
• ±2 g measurement range
• 3-axis measurement XYZ directions
• ±30mg offset stability over temp range
• SPI digital int erfa ce
• Extensiv e self dia gno stics features
• Size 7.6 x 3.3 x 8.6 mm (w x h x l)
• Qualified according to AEC-Q 100 stan dard
• Package, pin-out and SPI protocol compatible
with VTI digital accelero meter product family
• RoHS compliant Dual Flat Lead (DFL) plastic
package suitable for lead free sold ering process
and SMD mounting
• Proven capac itiv e 3D -MEMS technology
Applications
SCA3100-D04 is targeted to applications with high
stability requirements. Ty pical appl ica tion s include
• Hill Start Aid (HSA)
• Electronic Parking Brake (EPB)
• Roll Over detection
• Suspension control
• Inclinometers
• Motion and position measurements
General Description
SCA3100-D04 is a high performance three axis accelerometer component based on VTI capacitive 3D-MEMS
technology. The component integrates high accuracy micromechanical acceleration sensing together with a flexible
SPI digital interface. Dual Flat Lead (DFL) housing guarantees reliable operation over product lifetime.
SCA3100-D04 is designed, manufactured and tested for high stability, reliability and quality requirements of
automotive applications. The accelerometer has extremely stable output over wide range of temperature, humidity and
vibration. The component is qualified against AEC-Q100 standard and has several advanced self diagnostics features.
The DFL housing is suitable for SMD mounting and the component is comp atible with RoHS and ELV directives.
SCA3100-D04 is a part of VTI digital accelerometer family and fully compatible with single axis accelerometers
(SCA800 series) and other multi axis accelerometers (SCA2100 series and SCA3100 series).
Data Sheet
SCA3100-D04
VTI T echnologi es Oy 2/5
www.vti.fi Doc. Nr. 82 688 00 E
Performance Characteristics
Vdd=3.3 V and ambient temperature unless otherwise specified.
Condition
Min
Typ A)
Max
Units
Analog and digital Vdd
3.0
3.6
V
Current consum ption
Active mode
3
5
mA
Power down mode
0.12
mA
Measurement range
Measurement axes (XYZ)
-2
2
g
Operating temperature
-40
125
°C
Offset total error B)
Temperature range -40 ... +125 °C
-70
70
mg
Offset calibration er ror C)
@25 °C ±5°C
-40
±16
40
mg
Offset temperature drift
Temperature range -40 ... +125 °C
-30 D)
±18 E)
30 D)
mg
Sensitivity
12 bit output
Between ±3°
900
0.0637
Count/g
°/Count
Total sensitivity error
Temperature range -40 ... +125 °C
-4
4
% FS
Sensitivity calibration error
@25 °C ±5°C
±0.5
% FS
Sensitivity temperature drift
Temperature range -40 ... +125 °C
±0.8
% FS
Linearity error
+1g ... -1g range
-20
20
mg
Cross-Axis sensitivity
-3.5
±2.5
+3.5
%
Zero acceleration output
2-complement
0
Counts
Amplitude response F)
-3dB frequency
30
55
Hz
Noise
5
mg R MS
Power on setup time
0.1
s
Output data rate
2000
Hz
Output load
50
pF
SPI clock rate
8
MHz
ESD protection
Human Body Model
2
kV
Charge Device Model
1
kV
Moisture sensitivity level
IPC/JEDEC J-STD-020C, Level 3
Mechanical shock
20 000
g
ID register value
Customer readable ID register (27hex)
C1
A) Typical ± values are ±3 sigma variation limits from validat i on test populati on.
B) Includes offset deviati on from 0g value incl uding calibration error and drift over lifetime, temperature and
supply voltage.
C) Includes offset deviati on from 0g value inc l uding calibrat i on error and drift over lif etime.
D) Offset drift due to temperature. Value is a relative value and has been centered to zero. Error defi ned as maximum change
of offset in temperature range. Of fset (max)-Offset Min). 100% tested in production.
E) Biggest change of output from RT value due temperature.
F) See figure 4.
Figure 1. SCA3100-D04 Block diagram
C/V
D
E-
MUX
1:4
Lowpass
Filter
Lowpass
Filter
Lowpass
Filter
Decimation
Coordinate
Mapping
and
Calibration
SPI
i/f
SCK
MISO
MOSI
CSB
Oscillator
&
clock
Continuous
self test
Start-up
self test
Non-
Volatile
Memory
Reference
Temperature
sensor
Decimation
Decimation
Decimation
Lowpass
Filter
Analog
calibration
& ADC
SCA3100-D04
VTI T echnologi es Oy 3/5
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Typi cal Perfo rmance chara ct eri stics
X axis Offset calibration error
0
5
10
15
20
25
30
35
40
45
50
55
60
-25 -20 -15 -10 -5 0 5 10 15 20 25 30 35
Offset [mg]
Percent of parts[%]
Y axis Offset calibr ation error
0
5
10
15
20
25
30
35
40
45
50
55
60
-25 -20 -15 -10 -5 0 5 10 15 20 25 30 35
Offset [mg]
Percent of p arts[%]
Z axis Offset calibr ation error
0
5
10
15
20
25
30
35
40
45
50
55
60
-25 -20 -15 -10 -5 0 5 10 15 20 25 30 35
Offset [m g ]
Percen t of p arts[% ]
Temperature dependency of X axis offset
-20
-15
-10
-5
0
5
10
15
20
-45 -20 530 55 80 105 130
Temp [
o
C]
Offset[mg]
+3 si gm a
Average
-3 si gm a
X axis Offset drift at temperature r ang e
-40
o
C…+125
o
C
0
5
10
15
20
25
30
-30 -25 -20 -15 -10 -5 0 5 10 15 20 25 30
Offset drift [mg]
Percent of part s[ % ]
Temperature dependency of Y axis offset
-20
-15
-10
-5
0
5
10
15
20
-45 -20 530 55 80 105 130
Temp [
o
C]
Offset[mg]
+3 si gm a
Average
-3 si gm a
Y axis Offset drift at temperature range
-40
o
C…+125
o
C
0
5
10
15
20
25
30
-30 -25 -20 -15 -10 -5 0 5 10 15 20 25 30
Offset drift [mg]
Percent of parts[%]
Temperature dependency of Z axis offset
-20
-15
-10
-5
0
5
10
15
20
-45 -20 530 55 80 105 130
Temp [
o
C]
Offset[mg]
+3 si gm a
Average
-3 si gm a
Z axis Offset drift at temperature range
-40
o
C…+125
o
C
0
5
10
15
20
25
30
-30 -25 -20 -15 -10 -5 0 5 10 15 20 25 30
Offset drift [mg]
Percent of parts[%]
SCA3100-D04
VTI T echnologi es Oy 4/5
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X axis Sensitivit y at 25
o
C
0
5
10
15
20
25
30
35
40
45
50
55
60
893 894 895 896 897 898 899 900 901 902 903
Sensitivity [LSB/g]
Percent of part s[ % ]
X axis Sensitivit y drift at temper ature range
-40
o
C…+125
o
C
0
5
10
15
20
25
30
35
40
45
50
-0.8 -0.7 -0.6 -0.5 -0.4 -0.3 -0.2 -0.1 00.1 0.2
Sensitivity error [% FS]
Percent of parts[%]
Y axis Sensitivit y at 25
o
C
0
5
10
15
20
25
30
35
40
45
50
55
60
893 894 895 896 897 898 899 900 901 902 903
Sensitivity [LSB/g]
Percent of part s[ % ]
Y axis Sensitivit y drift at temperature range
-40
o
C…+125
o
C
0
5
10
15
20
25
30
35
40
45
50
-0.8 -0.7 -0.6 -0.5 -0.4 -0.3 -0.2 -0.1 00.1 0.2
Sensitivity error [% FS]
Percent of parts[%]
Z axis Sensitivity at 25
o
C
0
5
10
15
20
25
30
35
40
45
50
55
893 894 895 896 897 898 899 900 901 902 903
Sensitivity [LSB/g]
Per cen t of p arts[% ]
Z axis Sensitivity d rift at temperature range
-40
o
C…+125
o
C
0
5
10
15
20
25
30
35
40
45
50
-0.8 -0.7 -0.6 -0.5 -0.4 -0.3 -0.2 -0.1 00.1 0.2
S en siti v i ty er r o r [% FS]
Per cen t of p arts[% ]
SCA3100-D04
VTI T echnologi es Oy 5/5
www.vti.fi Doc. Nr. 82 688 00 E
Measument directions
Figure 1. Accelerometer measuring directions
Housing dimens ions
Figure 2. Housing dime nsions
Frequency response
Figure 3. Frequency response curves