CMA3000-D01 Datasheet, PDF (2/4 Pages) VTI technologies – 3-AXIS ULTRA LOW POWER ACCELEROMETER WITH DIGITAL SPI AND I2C INTERFACE

CMA3000-D01
Performance Characteristics ¹⁾
Parameter
Vdd
Digital I/O Vdd
Operating temperature **
Current consumption *
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 **
Bandwidth** ⁹⁾
Noise ** ¹⁰⁾
Turn on time ** ¹¹⁾
I²C clock rate **
SPI clock rate **
Condition
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
Typical supply range
1.7 – 2.7 V
Min Typ ²⁾
Max
1.7
2.5
2.7
1.7 1.8 / 2.5 2.7
-40
-
85
-
70
90
-
50
-
-
11
-
-
7
-
-
4
9
-8
-
8
-2
-
2
-100
±25
+100
±1
±2.5
-
56
-
-
14
-
-10
-
+10
-
±0.02
-
1.5
3
-
1
-
400
100
40
10
ODR/5
-
13
-
25
-
0.01
- 2.5/ODR
-
-
400
500
Extended supply range
2.7 – 3.6 V
Min Typ ²⁾
Max
-
3.3
-
-
3.3
-
-40
-
85
-
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
-
-
-
400
500
Units
V
V
°C
µA
G
mg
mg/°C
Count/g
%
%/°C
% FS
%
Hz
Hz
mg
RMS
s
kHz
kHz
*
100% tested in production
**
Qualified during product validation
1)
The product is factory calibrated at 2.5 V in room temperature.
2)
Typical values are not guaranteed.
3)
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.
4)
Offset temperature error = {Count(0g)-Offset} / Sensitivity [ g ]. Sensitivity = Calibrated sensitivity.
Offset= Calibrated offset.
5)
Sensitivity = {Count(+1g) - Count(-1g)}/2 [Count/g].
6)
Sensitivity temperature error = {[Count(+1g)-Count(-1g)]/2 - Sensitivity} / Sensitivity x 100% [%].
Sensitivity = Calibrated sensitivity.
7)
Best fit straight line.
8)
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.
9)
Frequency responses with 1^st order roll off according to Figure 3.
10)
Average noise/axis over the measurement bandwidth defined as
1
3
(nx
2_+ny
2_+nz
2)
,
where
nx,
ny
and
nz
are
the measured signal's standard deviation due to noise in x, y and z directions.
11)
Settling error less than 1% of FS.
VTI Technologies Oy
www.vti.fi
PRELIMINARY - Subject to changes
Doc. Nr. 8277800.14
2/4
Rev. 14