MEMSIC MXD2002A/B Rev.E
Page 2 of 8
5/15/2004
MXD2002A/B SPECIFICATIONS (Measurements @ 25°C, Acceleration = 0 unless otherwise noted, VDD, VDA =
5.0V unless otherwise specified)
Parameter
Conditions
Min
MXD2002A/B
Typ
Max
Units
SENSOR INPUT
Measurement Range1
Each Axis
±10
g
Nonlinearity
Best fit straight line
1.0
2.0
% of FS
Alignment Error2
±1.0
degrees
Transverse Sensitivity3
±2.0
%
SENSITIVITY
DOUTX and DOUTY
Each Axis
@5.0V supply
1.80
2.00
2.20 % Duty
Cycle/g
Change over Temperature (uncompensated)4
∆ from 25°C, at –40°C
+93
%
∆ from 25°C, at +105°C
-47
%
Change over Temperature (compensated) 4
∆ from 25°C, –40°C to +105°C
<3.0
%
ZERO g BIAS LEVEL
0 g Offset5
Each Axis
-0.70
0.00
+0.70
g
0 g Duty Cycle5
48.6
50
51.4
% Duty Cycle
0 g Offset over Temperature
∆ from 25°C
∆ from 25°C, based on 2%/g
±2.0
±004
mg/
°C
% /
°C
NOISE PERFORMANCE
Noise Density, % Duty Cycle
.0015
0.005 % Duty
Cycle/
Hz
FREQUENCY RESPONSE
3dB Bandwidth
30
Hz
TEMPERATURE OUTPUT
Tout Voltage
1.15
1.25
1.35
V
Sensitivity
4.6
5.0
5.4
mV/
°K
VOLTAGE REFERENCE
VRef
@2.7V-5.0V supply
2.4
2.5
2.65
V
Change over Temperature
0.1
mV/
°C
Current Drive Capability
Source
100
µA
SELF TEST
Continuous Voltage at DOUTX, DOUTY under
Failure
@5.0V Supply, output rails to
supply voltage
5.0
V
Continuous Voltage at DOUTX, DOUTY under
Failure
@2.7V Supply, output rails to
supply voltage
2.7
V
DOUTX and DOUTY OUTPUTS
Digital Signal of 100 Hz or 400Hz
Normal Output Range
@5.0V Supply
@2.7V Supply
0.1
0.1
4.9
2.6
V
V
Current
Source or sink, @ 2.7V-5.0V supply
100
µA
Rise/Fall Time
2.7 to 5.0V Supply
90
100
110
nSec
POWER SUPPLY
Operating Voltage Range
2.7
5.25
V
Supply Current
@ 5.0V
3.0
4.2
4.9
mA
Supply Current6,7
@ 2.7V
3.0
5.4
6
mA
TEMPERATURE RANGE
Operating Range
-40
+105
°C
NOTES
1 Guaranteed by measurement of initial offset and sensitivity.
2 Alignment error is specified as the angle between the true and indicated
axis of sensitivity.
3 Transverse sensitivity is the algebraic sum of the alignment and the
inherent sensitivity errors
4 The sensitivity change over temperature for thermal accelerometers is
based on variations in heat transfer that are governed by the laws of
physics and it is highly consistent from device to device. Please refer to
the section in this data sheet titled “Compensation for the Change of
Sensitivity over Temperature” for more information.
5 The device operates over a 2.7V to 5.25V supply range. Please note that
sensitivity and zero g bias level will be slightly different at 2.7V operation.
For devices to be operated at 2.7V/3.0V in production, they can be
trimmed at the factory specifically for this lower supply voltage operation,
in which case the sensitivity and zero g bias level specifications on this
page will be met. Please contact the factory for specially trimmed devices
for low supply voltage operation.
6 Note that the accelerometer has a constant heater power control circuit
thereby displaying higher supply current at lower operating voltage.
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