ADXL321 Просмотр технического описания (PDF) - Analog Devices
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ADXL321 Datasheet PDF : 16 Pages
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ADXL321
SPECIFICATIONS1
TA = 25°C, VS = 3 V, CX = CY = 0.1 µF, Acceleration = 0 g, unless otherwise noted.
Table 1.
Parameter
SENSOR INPUT
Measurement Range
Nonlinearity
Package Alignment Error
Alignment Error
Cross Axis Sensitivity
SENSITIVITY (RATIOMETRIC)2
Sensitivity at XOUT, YOUT
Sensitivity Change due to Temperature3
ZERO g BIAS LEVEL (RATIOMETRIC)
0 g Voltage at XOUT, YOUT
0 g Offset vs. Temperature
NOISE PERFORMANCE
Noise Density
FREQUENCY RESPONSE4
CX, CY Range5
RFILT Tolerance
Sensor Resonant Frequency
SELF-TEST6
Logic Input Low
Logic Input High
ST Input Resistance to Ground
Output Change at XOUT, YOUT
OUTPUT AMPLIFIER
Output Swing Low
Output Swing High
POWER SUPPLY
Operating Voltage Range
Quiescent Supply Current
Turn-On Time7
TEMPERATURE
Operating Temperature Range
Conditions
Min
Each axis
% of full scale
X sensor to Y sensor
Each axis
VS = 3 V
51
VS = 3 V
Each axis
VS = 3 V
1.4
@ 25°C
0.002
Self-test 0 to 1
No load
No load
2.4
−20
Typ
Max Unit
±18
g
±0.2
%
±1
Degrees
±0.1
Degrees
±2
%
57
63
mV/g
0.01
%/°C
1.5
1.6
V
±2
mg/°C
320
µg/√Hz rms
10
µF
32 ± 15%
kΩ
5.5
kHz
0.6
V
2.4
V
50
kΩ
18
mV
0.3
V
2.6
V
6
V
0.49
mA
20
ms
+70 °C
1 All minimum and maximum specifications are guaranteed. Typical specifications are not guaranteed.
2 Sensitivity is essentially ratiometric to VS.
3 Defined as the change from ambient-to-maximum temperature or ambient-to-minimum temperature.
4 Actual frequency response controlled by user-supplied external capacitor (CX, CY).
5 Bandwidth = 1/(2 × π × 32 kΩ × C). For CX, CY = 0.002 µF, bandwidth = 2500 Hz. For CX, CY = 10 µF, bandwidth = 0.5 Hz. Minimum/maximum values are not tested.
6 Self-test response changes cubically with VS.
7 Larger values of CX, CY increase turn-on time. Turn-on time is approximately 160 × CX or CY + 4 ms, where CX, CY are in µF.
Rev. 0 | Page 3 of 16
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