SCA3100 DEMO KIT VTI Technologies, SCA3100 DEMO KIT Datasheet - Page 40

• Manufacturer Part Number: SCA3100 DEMO KIT
• Description: KIT DEMO ACCELEROMETER SCA3100
• Manufacturer: VTI Technologies

Specifications of SCA3100 DEMO KIT

• Sensor Type: Accelerometer, 3 Axis
• Sensing Range: ±2g
• Interface: SPI
• Sensitivity: 900 counts/g
• Voltage - Supply: 3 V ~ 3.6 V
• Embedded: No
• Utilized Ic / Part: SCA3100 Series
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 551-1056

8.7 Turn-on time
VTI Technologies Oy
www.vti.fi
Equation 10
where S
acceleration [Count/g] and S
Cross-axis sensitivity [%] of Y-axis is given by
Equation 11
where S
acceleration [Count/g] and S
Cross-axis sensitivity [%] of Z-axis is given by
Equation 12
where S
acceleration [Count/g] and S
Cross-axis sensitivity of SCA3000 family is measured in centrifuge over specified measurement
range during qualification. Correct mounting position of component is important during the
measurement of cross-axis sensitivity.
Turn-on time is the time when the last of one X, Y, Z axis output readings stabilizes into its final
value after XRESET is pulled high. The final value limits in turn-on time measurements is defined to
be ±1 % of the sensor’s full scale measuring range (for example for SCA3000-D01 ±2g →
FS = 2 g). Turn-on time definition for Z-axis is presented in Figure 25 below.
Cross
Cross
Cross
Acceleration
Figure 25. Turn-on time definition for one axis.
SCA3000
Z-axis output
Turn on time
Y
Z
X
XY
YX
ZX
=
=
=
±
±
is X-axis sensitivity to Y-axis acceleration [Count/g], S
is Y-axis sensitivity to X-axis acceleration [Count/g], S
is Z-axis sensitivity to X-axis acceleration [Count/g], S
±
S
S
S
YX
ZX
XY
2
S
2
S
2
S
Y
+
+
Z
+
X
S
S
S
YZ
ZY
Doc.Nr. 8257300A.07
XZ
2
2
2
⋅
⋅
100
X
Y
Z
⋅
100
100
is sensitivity of Y-axis [Count/g].
is sensitivity of Z-axis [Count/g].
is sensitivity of X-axis [Count/g].
%,
%,
%,
Time scale
XRESET rise up
→ SCA3000 starts
SCA3000 output
inside ±1% FS
limits
XZ
YZ
ZY
is Z-axis sensitivity to Y-axis
is X-axis sensitivity to Z-axis
is Y-axis sensitivity to Z-axis
SCA3000 Series
Rev.A.07
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