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ADXL345BCCZ-RL71 Datasheet(Arkusz danych) 3 Page - Analog Devices

Numer części ADXL345BCCZ-RL71
Szczegółowy opis  Three-Axis, ±2/4/8/16g Digital Accelerometer
Pobierz  24 Pages
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Producent  AD [Analog Devices]
Strona internetowa  http://www.analog.com
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Preliminary Technical Data
ADXL345
Rev. PrA | Page 3 of 24
SPECIFICATIONS
TA = 25°C, VS = 2.5 V, VDD I/O = 1.8 V, Acceleration = 0 g, unless otherwise noted.
Table 1. Specifications1
Parameter
Conditions
Min
Typ
Max
Unit
SENSOR INPUT
Each axis
Measurement Range
User Selectable
±2, 4, 8, 16
g
Nonlinearity
Percentage of full scale
±0.5
%
Inter-Axis Alignment Error
±0.1
Degrees
Cross-Axis Sensitivity2
±1
%
OUTPUT RESOLUTION
Each axis
All g-ranges
10-bit mode
10
Bits
±2 g range
Full-Resolution
10
Bits
±4 g range
Full-Resolution
11
Bits
±8 g range
Full-Resolution
12
Bits
±16 g range
Full-Resolution
13
Bits
SENSITIVITY
Each axis
Sensitivity at XOUT, YOUT, ZOUT
VS = 2.5 V, ±2 g 10-bit or Full-Resolution
232
256
286
LSB/g
Scale Factor at XOUT, YOUT, ZOUT
VS = 2.5 V, ±2 g 10-bit or Full-Resolution
3.5
3.9
4.3
mg/LSB
Sensitivity at XOUT, YOUT, ZOUT
VS = 2.5 V, ±4 g 10-bit mode
116
128
143
LSB/g
Scale Factor at XOUT, YOUT, ZOUT
VS = 2.5 V, ±4 g 10-bit mode
7.0
7.8
8.6
mg/LSB
Sensitivity at XOUT, YOUT, ZOUT
VS = 2.5 V, ±8 g 10-bit mode
58
64
71
LSB/g
Scale Factor at XOUT, YOUT, ZOUT
VS = 2.5 V, ±8 g 10-bit mode
14.0
15.6
17.2
mg/LSB
Sensitivity at XOUT, YOUT, ZOUT
VS = 2.5 V, ±16 g 10-bit mode
29
32
36
LSB/g
Scale Factor at XOUT, YOUT, ZOUT
VS = 2.5 V, ±16 g 10-bit mode
28.1
31.2
34.3
mg/LSB
Sensitivity Change due to Temperature
±0.02
%/°C
0 g BIAS LEVEL
Each axis
0 g Output (XOUT, YOUT, ZOUT)
VS = 2.5 V, TA = 25°C
-150
0
+150
mg
0 g Offset vs. Temperature
<±1
mg/°C
NOISE PERFORMANCE
Noise (x-, y-axes)
Data Rate = 100 Hz, ±2 g 10-bit or Full-Res.
<1
LSB RMS
Noise (z-axis)
Data Rate = 100 Hz, ±2 g 10-bit or Full-Res.
<1.5
LSB RMS
OUTPUT DATA RATE / BANDWIDTH
User Selectable
Measurement Rate3
0.1
3200
Hz
SELF TEST
Output Change X
+0.31
+1.02
g
Output Change Y
-0.31
-1.02
g
Output Change Z
+0.46
+1.64
g
POWER SUPPLY
Operating Voltage Range (VS)
2.0
2.5
3.6
V
Interface Voltage Range (VDD I/O)
1.7
1.8
VS
V
Supply Current
Data Rate > 100 Hz
130
150
µA
Supply Current
Data Rate < 10 Hz
25
µA
Standby Mode Leakage Current
0.1
2
µA
Turn-On Time4
Data Rate = 3200 Hz
1.4
ms
TEMPERATURE
Operating Temperature Range
−40
85
°C
WEIGHT
Device Weight
20
mgrams
1 All minimum and maximum specifications are guaranteed. Typical specifications are not guaranteed.
2 Cross-axis sensitivity is defined as coupling between any two axes.
3 Bandwidth is half the output data rate.
4 Turn-on and wake-up times are determined by the user defined bandwidth. At 100 Hz data rate the turn-on/wake-up time is approximately 11.1 ms. For additional
data rates the turn-on/wake-up time is approximately τ + 1.1 in milliseconds, where τ is 1/(Data Rate).




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