CMA3000-A01 Datasheet, PDF (2/4 Pages) VTI technologies – 3-AXIS LOW POWER ANALOG OUTPUT ACCELEROMETER

CMA3000-A01
Performance Characteristics Targets ¹⁾
Parameter
Condition
Vdd
Operating temperature **
Current consumption *
Acceleration range *
Offset * ³⁾
Power down
Active
Range pin set to "1"
Range pin set to "0"
X and Y axis
Z axis
Offset calibration error * ³⁾
Offset temperature error ** ⁴⁾
Sensitivity * ⁵⁾
Sensitivity calibration error *
Sensitivity temperature error
** ⁶⁾
Non-Linearity ** ⁷⁾
Cross-Axis sensitivity ** ⁸⁾
Bandwidth** ⁹⁾
Noise ** ¹⁰⁾
Output resistance
Full scale=2 g,
T=+25 °C
-40 ... +85 °C
X and Z axis
Y axis
Full scale=2 g
Full scale=8 g
T=+25 °C
-40 ... +85 °C
C_L =100 nF
С_L =0 nF
X and Z axis
Y axis
Full scale=2 g
Full scale=8 g
Typical supply range
1.7 – 2.7 V
Min Typ ²⁾ Max
1.7
2.5
2.7
-40
-
85
-
<0.1
-
180
-2
-
2
-8
-
8
-
Vdd/2
-
-
Vdd/2
-
+sens
-100
±25 +100
Extended supply
range 2.7 – 3.6 V
Min Typ ²⁾ Max
2.7
3.3
3.6
-40
-
85
-
<0.1
-
-
200
-
-2
-
2
-8
-
8
-
Vdd/2
-
-
Vdd/2
-
+sens
-
±100
-
±1
-
±1
-
±2.5
-
±2.5
-
-
Vdd/6
-
-
Vdd/6
-
-
Vdd/24
-
-
Vdd/24
-
-10
-
+10
-
±10
-
±0.02
±0.02
-
1.5
3
-
1.5
-
-
1
-
-
1
-
30
50
70
30
50
70
120
-
120
-
200
-
200
-
-
300
600
-
300 600
-
300
600
-
300 600
28
32
36
28
32
36
Units
V
°C
µA
g
V
mg
mg/°C
V/g
V/g
%
%/°C
% FS
%
Hz
Hz
µg/√Hz
µg/√Hz
kΩ
*
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 130 mg. Please see
TN68_CMA3000_Assembly_Instructions for further details.
4)
Offset temperature error = {Vout(0g)-Offset} / Sensitivity [ g ]. Sensitivity = Calibrated sensitivity.
Offset= Calibrated offset.
5)
Sensitivity = {Vout(+1g) - Vout(-1g)}/2 [V/g] .
6)
Sensitivity temperature error = {[Vout(+1g)-Vout(-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 responce -3dB roll off frequency = 1/(2π*32kΩ*C_L), when C_L≥50 nF.
10)
Average noise/axis over the measurement bandwidth defined as
1
3
(nx
2
+
n
y
2₊
nz
2)
,
where
nx,
ny
and
nz
are
the measured signal's standard deviation due to noise in x, y and z directions.
VTI Technologies Oy
www.vti.fi
PRELIMINARY - Subject to changes
Doc. Nr. 8278700.12
2/4
Rev. 12