CMA3000-D01
Performance Characteristics
1)
Parameter
Vdd
Digital I/O Vdd
Operating temperature **
Current consumption *
Condition
Typical supply range
1.7 – 2.7 V
Min
Typ
2)
Max
1.7
1.7
-40
-
-
-
-
-
-8
-2
-100
2.5
1.8 / 2.5
-
70
50
11
7
4
-
-
±25
±1
±2.5
56
14
-
±0.02
1.5
1
400
100
40
10
ODR/5
13
25
0.01
2.5/ODR
-
2.7
2.7
85
90
-
-
-
9
8
2
+100
Extended supply range
2.7 – 3.6 V
Min Typ
2)
Max
-
-
-40
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
3.3
3.3
-
70
50
14
9
3
±8
±2
±100
±1
±2.5
56
14
±10
±0.02
1.5
1
400
100
40
10
ODR/5
13
25
0.01
2.5/ODR
-
-
-
85
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Units
V
V
°C
µA
Vdd
≥
Digital I/O Vdd
ODR=400 Hz
ODR=100 Hz
ODR=40 Hz
ODR=10 Hz
Power down
G_RANGE bit 0
G_RANGE bit 1
G_RANGE bit 1
-40 ... +85 °C
X and Z axis
Y axis
Full scale = 2 g
Full scale = 8 g
-40 ... +85 °C
G_RANGE bit 1
MODE bits x10
MODE bits x01
MODE bits 011
MODE bits 100
Full scale=2 g,
ODR=100 Hz
Full scale=8 g,
ODR=400 Hz
ODR=400 Hz
ODR≤100 Hz
Acceleration range *
Offset calibration error *
3)
Offset temperature error **
4)
Sensitivity *
5)
Sensitivity calibration error *
Sensitivity temperature error
**
6)
Non-Linearity **
7)
Cross-Axis sensitivity **
8)
Output Data Rate, ODR **
G
mg
mg/°C
Count/g
%
%/°C
% FS
%
Hz
-
-
-10
-
-
-
-
-
+10
3
-
Bandwidth**
9)
Noise **
10)
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
400
500
Hz
mg
RMS
s
kHz
kHz
Turn on time **
11)
I
2
C clock rate **
SPI clock rate **
*
**
1)
2)
3)
4)
5)
6)
7)
8)
400
500
9)
10)
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.
Z-axis +1g position. Soldering process can cause offset shift which is typically less than 150 mg. Please see
TN68_CMA3000_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.
Best fit straight line.
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 with 1
st
order roll off according to Figure 3.
Average noise/axis over the measurement bandwidth defined as
1 (
n
2
+
n
2
+
n
2 )
, where nx, ny and nz are
y
z
3
x
the measured signal's standard deviation due to noise in x, y and z directions.
Settling error less than 1% of FS.
11)
VTI Technologies Oy
www.vti.fi
PRELIMINARY - Subject to changes
Doc. Nr. 8277800.14
2/4
Rev. 14
VTI [ VTI TECHNOLOGIES ]
