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CMA3000-D01
Performance Characteristics 1)
Parameter
Condition
Typical supply range
Extended supply range
Units
1.7 – 2.7 V
2.7 – 3.6 V
Min
Typ 2)
Max
Min
Typ 2)
Max
Vdd
Digital I/O Vdd
Operating temperature **
Current consumption *
Acceleration range *
Vdd ≥ Digital I/O Vdd
ODR=400 Hz
ODR=100 Hz
ODR=40 Hz
ODR=10 Hz
Power down
G_RANGE bit 0
1.7
1.7
-40
-
-
-
-
-
-8
2.5
1.8 / 2.5
-
70
50
11
7
3
-
2.7
2.7
85
90
-
-
-
9
8
-
-
-40
-
-
-
-
-
-
3.3
3.3
-
70
50
14
9
4
±8
-
-
85
-
-
-
-
-
-
V
V
°C
μ A
G
G_RANGE bit 1
-2
-
2
-
±2
Offset calibration error * 3)
Offset temperature error ** 4)
Sensitivity * 5)
G_RANGE bit 1
-40 ... +85 °C
X and Z axis
Y axis
Full scale=2g,
ODR=400Hz
-100
-
-
-
-
±25
±1
±2.5
56
14
+100
-
-
-
-
-
-
-
-
-
±100
±1
±2.5
56
14
-
-
-
-
-
mg
mg/°C
Count/g
Full scale=8g
Sensitivity calibration error *
Sensitivity temperature error ** 6)
Non-Linearity ** 7)
Cross-Axis sensitivity ** 8)
Output Data Rate, ODR **
Bandwidth** 9)
Noise ** 10)
-40 ... +85 °C
G_RANGE bit 1
MODE bits x10
MODE bits x01
MODE bits 011
MODE bits 100
Full scale=2g,
-10
-
-
-
340
-
-
-
-
-
-
±0.02
1.5
1
400
100
40
10
ODR/5
13
+10
-
3
-
460
-
-
-
-
-
-
-
-
-
340
-
-
-
-
-
±10
±0.02
1.5
1
400
100
40
10
ODR/5
13
-
-
-
-
460
-
-
-
-
-
%
%/°C
% FS
%
Hz
Hz
mg
ODR=100Hz
RMS
Full scale=8g,
-
25
-
-
25
-
Turn on time ** 11)
I 2 C clock rate **
SPI clock rate **
ODR=400Hz
ODR=400 Hz
ODR ≤1 00 Hz
-
-
-
-
0.01
2.5/ODR
-
-
-
-
400
500
-
-
-
-
0.01
2.5/ODR
-
-
-
-
400
500
s
kHz
kHz
Average noise/axis over the measurement bandwidth defined as 1 n 2 n 2 n 2 , where nx, ny and nz are
( x + y + z )
*
**
1)
2)
3)
4)
5)
6)
7)
8)
9)
10)
11)
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].
With Full scale = 2g, ODR=100 Hz the nominal sensitivity is 50.5 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.
3
the measured signal's standard deviation due to noise in x, y and z directions.
Settling error less than 1% of FS.
Murata Electronics Oy
2/4
www.muratamems.fi
Doc. Nr. 8277800A.04
Rev. A.04
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