ADXL345 Просмотр технического описания (PDF) - Analog Devices
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ADXL345 Datasheet PDF : 40 Pages
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ADXL345
Data Sheet
SPECIFICATIONS
TA = 25°C, VS = 2.5 V, VDD I/O = 1.8 V, acceleration = 0 g, CS = 10 µF tantalum, CI/O = 0.1 µF, output data rate (ODR) = 800 Hz, unless
otherwise noted. All minimum and maximum specifications are guaranteed. Typical specifications are not guaranteed.
Table 1.
Parameter
SENSOR INPUT
Measurement Range
Nonlinearity
Inter-Axis Alignment Error
Cross-Axis Sensitivity2
OUTPUT RESOLUTION
All g Ranges
±2 g Range
±4 g Range
±8 g Range
±16 g Range
SENSITIVITY
Sensitivity at XOUT, YOUT, ZOUT
Sensitivity Deviation from Ideal
Scale Factor at XOUT, YOUT, ZOUT
Sensitivity Change Due to Temperature
0 g OFFSET
0 g Output for XOUT, YOUT
0 g Output for ZOUT
0 g Output Deviation from Ideal, XOUT, YOUT
0 g Output Deviation from Ideal, ZOUT
0 g Offset vs. Temperature for X-, Y-Axes
0 g Offset vs. Temperature for Z-Axis
NOISE
X-, Y-Axes
Z-Axis
OUTPUT DATA RATE AND BANDWIDTH
Output Data Rate (ODR)3, 4, 5
SELF-TEST6
Output Change in X-Axis
Output Change in Y-Axis
Output Change in Z-Axis
POWER SUPPLY
Operating Voltage Range (VS)
Interface Voltage Range (VDD I/O)
Supply Current
Standby Mode Leakage Current
Turn-On and Wake-Up Time7
Test Conditions
Each axis
User selectable
Percentage of full scale
Each axis
10-bit resolution
Full resolution
Full resolution
Full resolution
Full resolution
Each axis
All g-ranges, full resolution
±2 g, 10-bit resolution
±4 g, 10-bit resolution
±8 g, 10-bit resolution
±16 g, 10-bit resolution
All g-ranges
All g-ranges, full resolution
±2 g, 10-bit resolution
±4 g, 10-bit resolution
±8 g, 10-bit resolution
±16 g, 10-bit resolution
Each axis
ODR = 100 Hz for ±2 g, 10-bit resolution or
all g-ranges, full resolution
ODR = 100 Hz for ±2 g, 10-bit resolution or
all g-ranges, full resolution
User selectable
ODR ≥ 100 Hz
ODR < 10 Hz
ODR = 3200 Hz
Min Typ1
Max Unit
±2, ±4, ±8, ±16
±0.5
±0.1
±1
g
%
Degrees
%
10
Bits
10
Bits
11
Bits
12
Bits
13
Bits
230 256
230 256
115 128
57
64
29
32
±1.0
3.5 3.9
3.5 3.9
7.1 7.8
14.1 15.6
28.6 31.2
±0.01
282 LSB/g
282 LSB/g
141 LSB/g
71
LSB/g
35
LSB/g
%
4.3 mg/LSB
4.3 mg/LSB
8.7 mg/LSB
17.5 mg/LSB
34.5 mg/LSB
%/°C
−150 0
−250 0
±35
±40
±0.4
±1.2
+150
+250
mg
mg
mg
mg
mg/°C
mg/°C
0.75
LSB rms
1.1
LSB rms
0.1
0.20
−2.10
0.30
2.0 2.5
1.7 1.8
140
30
0.1
1.4
3200 Hz
2.10 g
−0.20 g
3.40 g
3.6 V
VS
V
µA
µA
µA
ms
Rev. E | Page 4 of 40
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