SCA3000-E01 VTI Technologies, SCA3000-E01 Datasheet - Page 40

• Manufacturer Part Number: SCA3000-E01
• Description: ACCELEROMETER 3-AXIS +/-3G SPI
• Manufacturer: VTI Technologies
• Series: SCA3000r

Specifications of SCA3000-E01

• Axis: X, Y, Z
• Acceleration Range: ±3g
• Sensitivity: 1000 counts/g
• Voltage - Supply: 2.35 V ~ 3.6 V
• Output Type: Digital
• Interface: SPI
• Mounting Type: Surface Mount
• Package / Case: 18-SMD
• For Use With: 551-1041 - SCA3000-D01 DEMOKIT551-1038 - BOARD PWB W/SCA3000-E01
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Bandwidth: -
• Other names: 551-1037-2; SCA3000-E01-10

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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