SCA820-D03
VTI Automotive Digital Accelerometer Platform
Performance Characteristics
Vdd=3.3 V and ambient temperature unless otherwise specified.
Parameter
Condition
Min
3.0
Active mode
Power down mode
Measurement axis Z
Temperature range -40 ... +125 °C
Temperature range -40 ... +125 °C
12 bit output
+1g ... -1g range
C)
Typ
5
Analog and digital Vdd
Current consumption
Measurement range
Operating temperature
Offset total error
A)
Offset temperature
dependency
B)
Sensitivity
Total sensitivity error
Linearity error
Cross-Axis sensitivity
Zero acceleration output
Amplitude response
Noise
Power on setup time
Output data rate
Output load
SPI clock rate
ESD protection
Moisture sensitivity level
Mechanical shock
A)
-2
-40
-100
-70
900
-4
-20
0
40
Max
3.6
6.3
0.1
2
125
100
70
Units
V
mA
mA
g
°C
mg
mg
Count/g
% FS
mg
%
Counts
Hz
mg RMS
s
Hz
pF
MHz
kV
kV
g
4
20
±3.5
60
5
0.1
1000
50
8
2
1
20 000
2-complement
-3dB frequency
Human Body Model
Charge Device Model
IPC/JEDEC J-STD-020C, Level 3
B)
C)
Includes offset deviation from 0g value including calibration error and drift over lifetime, temperature and
supply voltage.
Offset drift due to temperature. Value is a relative value and has not to be centered to zero.
See Figure 3
MOSI
MISO
SPI
C/V
A/D
SCK
Signal
conditioning
and filtering
CSB
Temp
sensor
PWM
Self diagnostics
PWM
Figure 1.
SCA820-D03 Block diagram
VTI Technologies Oy
www.vti.fi
PRELIMINARY- Subject to changes
Doc. Nr. 82 699 00 A
2/3
Rev.A
VTI [ VTI TECHNOLOGIES ]
