ADXL355 Просмотр технического описания (PDF) - Analog Devices
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ADXL355 Datasheet PDF : 42 Pages
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ADXL354/ADXL355
Data Sheet
Parameter
OUTPUT AMPLIFIER
Swing
Output Series Resistance
TEMPERATURE SENSOR
Output at 25°C
Scale Factor
TEMPERATURE
Operating Temperature Range
Test Conditions/Comments
No load
Min Typ Max
Unit
0.03
32
V1P8ANA − 0.03 V
kΩ
892.2
3.0
mV
mV/°C
−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
SENSOR INPUT
Output Full Scale Range (FSR)
Nonlinearity
Cross Axis Sensitivity
SENSITIVITY
X-Axis, Y-Axis, and Z-Axis Sensitivity
X-Axis, Y-Axis, and Z-Axis Scale Factor
Sensitivity Change due to Temperature
0 g OFFSET
X-Axis, Y-Axis, and Z-Axis 0 g Output
0 g Offset vs. Temperature (X-Axis, Y-Axis, and Z-Axis)1
Repeatability2
Vibration Rectification3
NOISE DENSITY
X-Axis, Y-Axis, and Z-Axis
Velocity Random Walk
OUTPUT DATA RATE AND BANDWIDTH
Low-Pass Filter Passband Frequency
High-Pass Filter Passband Frequency When Enabled
(Disabled by Default)
Test Conditions/Comments
Min
Each axis
User selectable
±2 g
Each axis
±2 g
±4 g
±8 g
±2 g
±4 g
±8 g
−40°C to +125°C
Each axis, ±2 g
−40°C to +125°C
X-axis and y-axis
Z-axis
±2 g range, in a 1 g orientation,
offset due to 2.5 g rms vibration
±2 g
235,520
117,760
58,880
−75
−0.15
X-axis and y-axis
Z-axis
User programmable, Register 0x28
User programmable, Register 0x28
for 4 kHz ODR
1
0.0095
Typ
±2.048
±4.096
±8.192
0.1
1
256,000
128,000
64,000
3.9
7.8
15.6
±0.01
±25
±0.02
±3.5
±9
<0.4
25
9
13
Max
276,480
138,240
69,120
+75
+0.15
1000
10
Unit
g
g
g
% FS
%
LSB/g
LSB/g
LSB/g
µg/LSB
µg/LSB
µg/LSB
%/°C
mg
mg/°C
mg
mg
g
µg/√Hz
µm/sec/√Hr
µm/sec/√Hr
Hz
Hz
Rev. 0 | Page 4 of 42
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