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SCA3000-E04 Fiches technique(PDF) 2 Page - VTI technologies

No de pièce SCA3000-E04
Description  3-AXIS ULTRA LOW POWER ACCELEROMETER WITH DIGITAL SPI INTERFACE
Download  4 Pages
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Fabricant  VTI [VTI technologies]
Site Internet  http://www.vti.fi
Logo VTI - VTI technologies

SCA3000-E04 Fiches technique(HTML) 2 Page - VTI technologies

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SCA3000-E04
VTI Technologies Oy
PRELIMINARY - Subject to changes
2/4
www.vti.fi
Doc. Nr. 8290500A
Rev.A
Performance Characteristics
1)
Typical supply range
2.35 – 2.7 V
Extended supply
range 2.7 – 3.6 V
Parameter
Condition
Min
Typ
2)
Max
Min
Typ
2)
Max
Units
Analog and digital Vdd
2.35
2.5
2.7
-
3.3
-
V
Digital I/O Vdd
Vdd ≥ Digital I/O Vdd
1.7
1.8 / 2.5
2.7
-
3.3
-
V
Operating temperature **
-40
-
85
-40
-
85
°C
Current consumption *
Reset 3)
-
<7
-
<9
-
µA
Active
-
120
-
150
-
µA
Motion Detection
mode
-
120
-
150
-
µA
Acceleration range *
4)
Nominal
-6
-
6
-
± 6
-
g
Offset calibration error *
Z-axis +1g position
-80
-
80
-
± 200
-
mg
Offset temperature error **
5)
-40 ... +85 °C
-
±1.6
-
±1.6
-
mg/°C
Sensitivity *
6)
-
500
-
-
500
-
Count/g
Sensitivity calibration error *
-1
-
+1
-
± 1
-
%
Sensitivity temperature error
**
7)
-40 ... +85 °C
-
±0.01
-
±0.01
-
%/°C
Non-Linearity **
8)
-
±0.5
-
±0.5
-
% FS
Cross-Axis sensitivity **
9)
-
±4
-
-
±4
-
%
Bandwidth **
10)
Measurement mode
30
38
46
-
38
-
Hz
Narrow band
measurement mode
7
9
11
-
9
-
Hz
Noise **
11)
Measurement mode
-
18
-
18
-
mg RMS
Narrow band
measurement mode
-
10
-
10
-
mg RMS
Output data rate **
Measurement mode
80
100
120
-
93
-
Hz
Narrow band
measurement mode
40
50
60
-
45
-
Hz
Turn on time **
12)
Measurement mode
-
35
-
35
-
ms
Narrow band
measurement mode
-
200
-
200
-
ms
Output load **
-
-
35
-
-
35
pF
SPI clock rate **
-
-
325
-
-
325
kHz
*
100% tested in production
**
Qualified during product validation
1)
The product is factory calibrated at 2.5 V in room temperature.
2)
Typical values are not guaranteed.
3)
Includes the current through the internal 400 k
Ω pull-up resistor connected to digital I/O Vdd.
4)
Range defined as
g
z
y
x
6
2
2
2
+
+
. The measuring range is tested on sensing element level. FS = 6g.
5)
Offset temperature error = {Count(0g)-Offset} / Sensitivity [ g ]. Sensitivity = Calibrated sensitivity.
Offset= Calibrated offset.
6)
Sensitivity = {Count(+1g) - Count(-1g)}/2 [Count/g].
7)
Sensitivity temperature error = {[Count(+1g)-Count(-1g)]/2 - Sensitivity} / Sensitivity x 100% [%].
Sensitivity = Calibrated sensitivity.
8)
Best fit straight line.
9)
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.
10)
Frequency responses according to Figure 3 and Figure 4.
11)
Average noise/axis over the measurement bandwidth defined as
)
2
2
2
(
3
1
z
n
y
n
x
n
+
+
, where nx, ny and nz are
the measured signal's standard deviation due to noise in x, y and z directions.
12)
Settling error less than 1% of FS.


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