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MXA2500U Datasheet(PDF) 2 Page - List of Unclassifed Manufacturers

Part No. MXA2500U
Description  Ultra Low Noise, 1g Dual Axis Accelerometer with Analog Outputs
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Maker  ETC1 [List of Unclassifed Manufacturers]
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MXA2500U Datasheet(HTML) 2 Page - List of Unclassifed Manufacturers

   
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MEMSIC MXA2500U Rev A
Page 2 of 8
05/02
MXA2500U SPECIFICATIONS (Measurements @ 25°C, Acceleration = 0 g unless otherwise noted; VDD, VDA = 5.0V
unless otherwise specified)
Parameter
Conditions
Min
MXA2500U
Typ
Max
Units
SENSOR INPUT
Measurement Range1
Each Axis
±1.0
g
Nonlinearity
Best fit straight line
0.5
1.0
% of FS
Alignment Error2
±1.0
degree
Transverse Sensitivity3
±2.0
%
SENSITIVITY
Sensitivity, Analog Outputs at pins
AOUTX and AOUTY
6
Each Axis
475
500
525
mV/g
Change over Temperature (uncompensated)4
∆ from 25°C, at –40°C
+100
%
∆ from 25°C, at +105°C
-50
%
Change over Temperature (compensated) 4
∆ from 25°C, –40°C to +105°C
<3.0
%
ZERO g BIAS LEVEL
0 g Offset6
Each Axis
-0.1
0.00
+0.1
g
0 g Voltage6
1.20
1.25
1.30
V
0 g Offset over Temperature
∆ from 25°C
∆ from 25°C, based on 500mV/g
±0.75
±0.375
mg/
°C
mV/
°C
NOISE PERFORMANCE
Noise Density, rms
Without frequency compensation
0.2
0.4
mg/
Hz
FREQUENCY RESPONSE
3dB Bandwidth - uncompensated
25
Hz
3dB Bandwidth - compensated5
>160
Hz
TEMPERATURE OUTPUT
Tout Voltage
1.23
1.25
1.27
V
Sensitivity
4.6
5.0
5.4
mV/
°C
VOLTAGE REFERENCE
VRef
@2.7V-5.25V 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 AOUTX, AOUTY under
Failure
@5.0V Supply, output rails to
supply voltage
5.0
V
Continuous Voltage at AOUTX, AOUTY under
Failure
@2.7V Supply, output rails to
supply voltage
2.7
V
AOUTX and AOUTY OUTPUTS
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
Turn-On Time
@5.0V Supply
@2.7V Supply
100
40
mS
mS
POWER SUPPLY
Operating Voltage Range
2.7
5.25
V
Supply Current
@ 5.0V
3.0
3.6
4.2
mA
Supply Current6,7
@ 2.7V
4.0
4.9
5.8
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 External circuitry is required to extend the 3dB bandwidth. (ref.
Application Note: AN-00MX-003).
6 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.
7 Note that the accelerometer has a constant heater power control circuit
thereby requiring higher supply current at lower operating voltage.


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