SCA3000-D01
Performance Characteristics 1)
Parameter
Condition
Typical supply range
2.35 – 2.7 V
Extended supply
range 2.7 – 3.6 V
Min Typ 2)
Max
Units
Min
2.35
1.7
-40
-
Typ 2)
2.5
Max
2.7
2.7
85
Analog and digital Vdd
Digital I/O Vdd
Operating temperature **
Current consumption *
-
-
3.3
3.3
-
<9
650
400
-
-
85
-
-
-
V
V
°C
µA
µA
µA
Vdd ≥ Digital I/O Vdd
1.8 / 2.5
-
-40
Reset 3)
Active
Motion Detection
mode
Nominal
<7
12
-
-
-
-
-
480
300
600
375
Acceleration range * 4)
Offset calibration error * 5)
Offset temperature error ** 6)
Sensitivity * 7)
-2
-20
-3
-
-1
-
-
2
20
+3
-
+1
-
-
-
-
-
-
± 2
± 50
±0.5
1333
± 1
-
-
-
-
-
-
g
mg
mg/°C
Count/g
%
Z-axis +1g position
-40 ... +85 °C
±0.5
1333
-
Sensitivity calibration error *
Sensitivity temperature error
** 8)
-40 ... +85 °C
+0.02
±0.01
+0.02
±0.01
%/°C
Non-Linearity ** 9)
-3
-
36
56
±1
±3
45
70
+3
-
54
84
-
-
-
-
±1
±3
45
70
-
-
-
-
% FS
%
Hz
Cross-Axis sensitivity ** 10)
Bandwidth ** 11)
Measurement mode
Bypass measurement
mode
Hz
Noise ** 12)
Measurement mode
-
-
3
5
6
-
-
3
5
-
-
mg
RMS
mg
RMS
Hz
Count
Count/°
C
Bypass measurement
mode
10
Output data rate **
Temperature output
200
226
-
250
256
1.8
300
286
-
-
-
-
260
256
1.8
-
-
-
T=+23 °C
Sensitivity
Turn on time ** 13)
Measurement mode
Bypass measurement
mode
-
-
35
35
70
70
-
-
35
35
-
-
ms
ms
Output load **
SPI clock rate **
-
-
-
-
35
1.6
-
-
-
-
35
1.6
pF
MHz
*
100% tested in production
**
Qualified during product validation
The product is factory calibrated at 2.5 V in room temperature.
Typical values are not guaranteed.
1)
2)
3)
Includes the current through the internal 400 kΩ pull-up resistor connected to digital I/O Vdd.
4)
5)
2
2
2
Range defined as
. The measuring range is tested on sensing element level. FS = 2g.
≤ 2g
z
+
+
y
x
Soldering process can cause offset shift which is typically less than 50 mg. Please see
TN54_SCA3000_Assembly_Instructions for further details.
Offset temperature error = {Count(0g)-Offset} / Sensitivity [ g ]. Sensitivity = Calibrated sensitivity.
Offset= Calibrated offset.
Sensitivity = {Count(+1g) - Count(-1g)}/2 [Count/g].
Sensitivity temperature error = {[Count(+1g)-Count(-1g)]/2 - Sensitivity} / Sensitivity x 100% [%].
Sensitivity = Calibrated sensitivity.
6)
7)
8)
9)
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 3 and Figure 4.
10)
11)
12)
1
3
2
Average noise/axis over the measurement bandwidth defined as
2
2 , where nx, ny and nz are
n
n
n
(
+
+
)
z
y
x
the measured signal's standard deviation due to noise in x, y and z directions.
Settling error less than 1% of FS.
13)
VTI Technologies Oy
www.vti.fi
2/4
Rev.B.01
Doc. Nr. 8255700B.01
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