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PDF ( 数据手册 , 数据表 ) LIS344ALH

零件编号 LIS344ALH
描述 MEMS inertial sensor
制造商 STMicroelectronics
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LIS344ALH 数据手册, 描述, 功能
LIS344ALH
MEMS inertial sensor
www.datashheeit4guh.comperformance 3-axis ±2/±6g ultracompact linear accelerometer
Features
2.4 V to 3.6 V single supply operation
±2 g / ±6 g user selectable full-scale
Low power consumption
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 ( 10000 g )
Description
The LIS344ALH 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 an ST
proprietary CMOS process with high level of
integration. The dedicated circuit is trimmed to
better match the sensing element characteristics.
LGA 16 (4x4x1.5 mm)
The LIS344ALH has a dynamically user
selectable full-scale of ±2 g / ±6 g and it is
capable of measuring accelerations over a
maximum bandwidth of 1.8 kHz for all axes. The
device bandwidth may be reduced by using
external capacitances. The self-test capability
allows the user to check the functioning of the
system.
The LIS344ALH is available in Land Grid Array
package (LGA) manufactured by ST.
It is guaranteed to operate over an extended
temperature range of -40 °C to +85 °C.
The LIS344ALH 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 codes
Temp range [° C]
LIS344ALH
-40 to +85
LIS344ALHTR
-40 to +85
Package
LGA-16
LGA-16
Packaging
Tray
Tape and reel
February 2008
Rev 2
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www.st.com
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LIS344ALH pdf, 数据表
Mechanical and electrical specifications
LIS344ALH
2.2 Electrical characteristics
Table 4. Electrical characteristics @ Vdd =3.3 V, T = 25 °C unless otherwise noted(1)
www.datasheSety4mu.cbooml
Parameter
Test condition
Min.
Typ.(2)
Max.
Vdd
Idd
Vfs
Vst
Vpd
Rout
Cload
Ton
Top
Supply voltage
Supply current
Full-scale input
Self-test input
Power-down input
Output impedance of
VoutX, VoutY, VoutZ
Capacitive load drive(3)
for VoutX, VoutY, VoutZ
Turn-on time at exit of
Power-down mode
Operating temperature
range
Normal mode
Power-down mode
Logic 0 level
Logic 1 level
Cload expressed in µF
2.4 3.3 3.6
680
15
0 0.3*Vdd
0.7*Vdd
Vdd
90 110 130
1
550*Cload+
0.3
-40 +85
1. The product is factory calibrated at 3.3 V.
2. Typical specifications are not guaranteed.
3. Minimum resonance frequency Fres=1.8 kHz. Device bandwidth=1/(2*π*110 k*Cload), with Cload>1 nF.
Unit
V
µA
V
V
K
nF
ms
ºC
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LIS344ALH equivalent, schematic
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LIS344ALH
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