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LIS344AL 데이터시트 PDF




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부품번호 LIS344AL 기능
기능 MEMS inertial sensor
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LIS344AL 데이터시트, 핀배열, 회로
www.datasheet4u.com
LIS344AL
MEMS inertial sensor
3-axis ultracompact linear accelerometer
Features
Single voltage supply operation
±3.5g full-scale
Output voltage, offset and sensitivity are
ratiometric to the supply voltage
Factory trimmed device sensitivity and offset
Embedded self test
RoHS/ECOPACK® compliant
High shock survivability (10000g)
Description
The LIS344AL is an ultra compact consumer low-
power three-axis linear accelerometer that
includes a sensing element and an IC interface
able to take the information from the sensing
element and to provide an analog signal to the
external world.
The sensing element, capable of detecting the
acceleration, is manufactured using a dedicated
process developed by ST to produce inertial
sensors and actuators in silicon.
The IC interface is manufactured using a CMOS
process that allows high level of integration to
design a dedicated circuit which is trimmed to
better match the sensing element characteristics.
LGA 16 (4x4x1.5mm)
The LIS344AL is capable of measuring
accelerations over a maximum bandwidth of
2.0kHz. The device bandwidth may be reduced by
using external capacitances. A self-test capability
allows the user to check the functioning of the
system.
The LIS344AL is available in Land Grid Array
package (LGA) and it is guarantee to operate over
an extended temperature range of -40°C to
+85°C.
The LIS344AL belongs to a family of products
suitable for a variety of applications:
– Mobile terminals
– Gaming and virtual reality input devices
– Antitheft systems and inertial navigation
– Appliance and robotics.
Table 1. Device summary
Order code
Temp range, ° C
LIS344AL
-40°C to +85°C
LIS344ALTR
-40°C to +85°C
Package
LGA-16
LGA-16
Packing
Tray
Tape & Reel
December 2007
Rev 1
1/15
www.st.com
15




LIS344AL pdf, 반도체, 판매, 대치품
List of tables
List of tables
LIS344AL
www.datasTheaebt4leu.c1o.m
Table 2.
Table 3.
Table 4.
Table 5.
Table 6.
Table 7.
Device summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Mechanical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Filter capacitor selection, Cload (x,y,z), . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
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LIS344AL 전자부품, 판매, 대치품
LIS344AL
Mechanical and electrical specifications
2 Mechanical and electrical specifications
2.1 Mechanical characteristics
www.datasheet4u.com
All the parameters are specified @ Vdd =3.0 V, T = 25°C unless otherwise noted
Table 3.
Symbol
Mechanical characteristics(1)
Parameter
Test condition
Min.
Typ.(2)
Max.
Unit
Ar Acceleration range(3)
±3.5 g
So Sensitivity(5)
0.100*Vdd -
10%
0.100*Vdd
0.100*Vdd+
10%
V/g
SoDr
Voff
Sensitivity change vs
temperature
Zero-g level(4)
Delta from +25°C
T = 25°C
Vdd/2-15%
0.01
Vdd/2
Vdd/2+15%
%/°C
V
OffDr
Zero-g level change vs
temperature
Delta from +25°C
NL Non linearity(5)
Best fit straight line
CrossAx Cross-axis(6)
±0.7
±0.6
±2
mg/°C
% FS
%
An
Acceleration noise
density
Vdd=3.0 V
275 µg/ Hz
T = 25°C
Vdd=3.0 V
X axis
84 mV
T = 25°C
Vt
Self test output voltage
change(7)
Vdd=3.0 V
Y axis
84 mV
T = 25°C
Vdd=3.0 V
Z axis
-84 mV
Fres
Sensing element
resonant frequency(8)
X, Y, Z axis
2.0
KHz
Top
Operating temperature
range
-40 +85 °C
Wh Product weight
0.040
gram
1. The product is factory calibrated at 3.0 V. The operational power supply range is from 2.7 V to 3.3 V. Voff, So and Vt
parameters will vary with supply voltage.
2. Typical specifications are not guaranteed.
3. Guaranteed by wafer level test and measurement of initial offset and sensitivity.
4. Zero-g level and sensitivity are essentially ratiometric to supply voltage at the calibration level ±8%.
5. Guaranteed by design.
6. Contribution to the measuring output of an inclination/acceleration along any perpendicular axis.
7. “Self test output voltage change” is defined as Vout(Vst=Logic1)-Vout(Vst=Logic0).
8. Minimum resonance frequency Fres=2.0 KHz. Sensor bandwidth=1/(2*π*32 k*Cload), with Cload>2.5 nF.
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