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参数资料
| 型号： | ADXL322 |
| 厂商： | Analog Devices, Inc. |
| 英文描述： | Small and Thin +-2 g Accelerometer |
| 中文描述： | 小而薄-2克加速度 |
| 文件页数： | 3/16页 |
| 文件大小： | 286K |
| 代理商： | ADXL322 |
ADXL322
SPECIFICATIONS
T
A
= 25°C, V
S
= 3 V, C
X
= C
Y
= 0.1 μF, Acceleration = 0
g
, unless otherwise noted
1
.
Table 1.
Parameter
SENSOR INPUT
Measurement Range
Nonlinearity
Package Alignment Error
Alignment Error
Cross-Axis Sensitivity
SENSITIVITY (RATIOMETRIC)
2
Sensitivity at X
OUT
, Y
OUT
Sensitivity Change due to Temperature
3
ZERO
g
BIAS LEVEL (RATIOMETRIC)
0
g
Voltage at X
OUT
, Y
OUT
Initial 0
g
Bias Deviation from Ideal
0
g
Offset Vs. Temperature
NOISE PERFORMANCE
Noise Density
FREQUENCY RESPONSE
4
C
X
, C
Y
Range
5
R
FILT
Tolerance
Sensor Resonant Frequency
SELF-TEST
T
6
Logic Input Low
Logic Input High
ST Input Resistance to Ground
Output Change at X
OUT
, Y
OUT
OUTPUT AMPLIFIER
Output Swing Low
Output Swing High
POWER SUPPLY
Operating Voltage Range
Quiescent Supply Current
Turn-On Time
7
TEMPERATURE
Operating Temperature Range
Rev. 0 | Page 3 of 16
Conditions
Each axis
% of full scale
X sensor to Y sensor
Each axis
V
S
= 3 V
V
S
= 3 V
Each axis
V
S
= 3 V
at 25°C
Self-test 0 to 1
No load
No load
Min
378
1.3
0.002
2.4
20
Typ
±2
±0.2
±1
±0.1
±2
420
0.01
1.5
±50
<±0.5
220
32 ± 15%
5.5
0.6
2.4
50
125
0.2
2.7
0.45
20
Max
462
1.7
10
6
70
Unit
g
%
Degrees
Degrees
%
mV/
g
%/°C
V
m
g
m
g
/°C
μ
g
/√Hz rms
μF
kΩ
kHz
V
V
kΩ
mV
V
V
V
mA
ms
°C
1
All minimum and maximum specifications are guaranteed. Typical specifications are not guaranteed.
2
Sensitivity is essentially ratiometric to V
S
. For V
S
= 2.7 V to 3.3 V, sensitivity is 138 mV/V/
g
to 142 mV/V/
g
typical.
3
Defined as the output change from ambient-to-maximum temperature or ambient-to-minimum temperature.
4
Actual frequency response controlled by user-supplied external capacitor (C
X
, C
Y
).
5
Bandwidth = 1/(2 × π × 32 kΩ × C). For C
X
, C
Y
= 0.002 μF, bandwidth = 2500 Hz. For C
X
, C
Y
= 10 μF, bandwidth = 0.5 Hz. Minimum/maximum values are not tested.
6
Self-test response changes cubically with V
S
.
7
Larger values of C
X
, C
Y
increase turn-on time. Turn-on time is approximately 160 × C
X
or C
Y
+ 4 ms, where C
X
, C
Y
are in μF.
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