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ADXL354CEZ-RL7 Datasheet(Arkusz danych) 4 Page - Analog Devices

Numer części ADXL354CEZ-RL7
Szczegółowy opis  Hermetic package offers excellent long-term stability
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ADXL354/ADXL355
Data Sheet
Rev. 0 | Page 4 of 42
Parameter
Test Conditions/Comments
Min
Typ
Max
Unit
OUTPUT AMPLIFIER
Swing
No load
0.03
V1P8ANA − 0.03
V
Output Series Resistance
32
kΩ
TEMPERATURE SENSOR
Output at 25°C
892.2
mV
Scale Factor
3.0
mV/°C
TEMPERATURE
Operating Temperature Range
−40
+125
°C
1
The resonant frequency is a sensor characteristic. An integrated analog 1.5 kHz (−6 dB) sinc low-pass filter that cannot be bypassed limits the actual output response.
2
The temperature change is −40°C to +25°C or +25°C to +125°C.
3
Repeatability is predicted for a 10 year life and includes shifts due to the high temperature operating life test (HTOL) (TA = 150°C, VSUPPLY = 3.6 V, and 1000 hours),
temperature cycling (−55°C to +125°C and 1000 cycles), velocity random walk, broadband noise, and temperature hysteresis.
4
The VRE measurement is the shift in dc offset while the device is subject to 2.5 g rms of random vibration from 50 Hz to 2 kHz. The device under test (DUT) is
configured for the ±2 g range and an output data rate of 4 kHz. The VRE scales with the range setting.
5
When V1P8ANA and V1P8DIG are generated internally, VSUPPLY is valid. To disable the LDO and drive V1P8ANA and V1P8DIG externally, connect VSUPPLY to VSS.
6
Standby to measurement mode; valid when the output is within 1 mg of the final value.
DIGITAL OUTPUT FOR THE ADXL355
TA = 25°C, VSUPPLY = 3.3 V, x-axis acceleration and y-axis acceleration = 0 g, and z-axis acceleration = 1 g, and output data rate (ODR) =
500 Hz, unless otherwise noted. Note that multifunction pin names may be referenced by their relevant function only.
Table 2.
Parameter
Test Conditions/Comments
Min
Typ
Max
Unit
SENSOR INPUT
Each axis
Output Full Scale Range (FSR)
User selectable
±2.048
g
±4.096
g
±8.192
g
Nonlinearity
±2 g
0.1
% FS
Cross Axis Sensitivity
1
%
SENSITIVITY
Each axis
X-Axis, Y-Axis, and Z-Axis Sensitivity
±2 g
235,520
256,000
276,480
LSB/g
±4 g
117,760
128,000
138,240
LSB/g
±8 g
58,880
64,000
69,120
LSB/g
X-Axis, Y-Axis, and Z-Axis Scale Factor
±2 g
3.9
µg/LSB
±4 g
7.8
µg/LSB
±8 g
15.6
µg/LSB
Sensitivity Change due to Temperature
−40°C to +125°C
±0.01
%/°C
0 g OFFSET
Each axis, ±2 g
X-Axis, Y-Axis, and Z-Axis 0 g Output
−75
±25
+75
mg
0 g Offset vs. Temperature (X-Axis, Y-Axis, and Z-Axis)1
−40°C to +125°C
−0.15
±0.02
+0.15
mg/°C
Repeatability2
X-axis and y-axis
±3.5
mg
Z-axis
±9
mg
Vibration Rectification3
±2 g range, in a 1 g orientation,
offset due to 2.5 g rms vibration
<0.4
g
NOISE DENSITY
±2 g
X-Axis, Y-Axis, and Z-Axis
25
µg/√Hz
Velocity Random Walk
X-axis and y-axis
9
µm/sec/√Hr
Z-axis
13
µm/sec/√Hr
OUTPUT DATA RATE AND BANDWIDTH
Low-Pass Filter Passband Frequency
User programmable, Register 0x28
1
1000
Hz
High-Pass Filter Passband Frequency When Enabled
(Disabled by Default)
User programmable, Register 0x28
for 4 kHz ODR
0.0095
10
Hz




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