LIS244ALTR STMicroelectronics, LIS244ALTR Datasheet

ACCELEROMETER 2AXIS 16-LGA

LIS244ALTR

Manufacturer Part Number
LIS244ALTR
Description
ACCELEROMETER 2AXIS 16-LGA
Manufacturer
STMicroelectronics
Datasheet

Specifications of LIS244ALTR

Axis
X, Y
Acceleration Range
±2g
Sensitivity
0.140 x Vdd = V/g
Voltage - Supply
2.4 V ~ 3.6 V
Output Type
Analog
Bandwidth
4kHz
Interface
IC
Mounting Type
Surface Mount
Package / Case
16-LGA
Sensing Axis
X, Y
Acceleration
2 g
Maximum Operating Temperature
+ 85 C
Minimum Operating Temperature
- 40 C
For Use With
497-8202 - BOARD ADAPTER LIS244AL DIL24
Lead Free Status / RoHS Status
Lead free / RoHS Compliant

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Part Number:
LIS244ALTR
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Features
Description
The LIS244AL is an ultra compact consumer low-
power two-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.
Table 1.
Note:
June 2007
Single voltage supply operation
±
Output voltage, offset and sensitivity are
ratiometric to the supply voltage
Factory trimmed device sensitivity and offset
Embedded self test
ECOPACK lead-free compliant
High shock survivability (10000g)
2
g
Order codes
LIS244ALTR
full-scale
LIS244AL
Device summary
Tape & Reel parts are compliant to International Standard EIA-481.
Temp range, ° C
2-axis - ±2g ultracompact linear accelerometer
-40°C to +85°C
-40°C to +85°C
Rev 1
The LIS244AL 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 LIS244AL 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 LIS244AL 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.
Package
LGA-16
LGA-16
MEMS motion sensor:
LGA 16 (4x4x1.5mm)
LIS244AL
Tape & Reel
Packing
Tray
www.st.com
1/15
15

Related parts for LIS244ALTR

LIS244ALTR Summary of contents

Page 1

... Table 1. Device summary Order codes LIS244AL LIS244ALTR Note: Tape & Reel parts are compliant to International Standard EIA-481. June 2007 2-axis - ±2g ultracompact linear accelerometer The LIS244AL is capable of measuring accelerations over a maximum bandwidth of 2 ...

Page 2

Contents Contents 1 Block diagram & pins description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 1.1 ...

Page 3

LIS244AL 1 Block diagram & pins description 1.1 Block diagram Figure 1. Block diagram a SELF TEST St 1.2 Pin Description Figure 2. Pin Connection X (TOP VIEW) DIRECTION OF THE DETECTABLE ACCELERATIONS X+ CHARGE Y+ AMPLIFIER MUX Y- X- ...

Page 4

Block diagram & pins description Table 2. Pin description Pin # Pin name 4/ Self test (logic 0: normal mode; logic 1: ...

Page 5

LIS244AL 2 Mechanical and electrical specifications 2.1 Mechanical characteristics (Temperature range -40°C to +85°C). All the parameters are specified @ Vdd =3.0V 25°C unless otherwise noted Table 3. Mechanical characteristics Symbol Parameter (3) Ar Acceleration range (5) So ...

Page 6

Mechanical and electrical specifications 2.2 Electrical characteristics (Temperature range -40°C to +85°C) All the parameters are specified @ Vdd =3.0V, T=25°C unless otherwise noted Table 4. Electrical characteristics Symbol Parameter Vdd Supply voltage Idd Supply current Vst Self test input ...

Page 7

LIS244AL 2.3 Absolute maximum ratings Stresses above those listed as “absolute maximum ratings” may cause permanent damage to the device. This is a stress rating only and functional operation of the device under these conditions is not implied. Exposure to ...

Page 8

Mechanical and electrical specifications Self Test allows to test the mechanical and electric part of the sensor, allowing the seismic mass to be moved by means of an electrostatic test-force. The Self Test function is off when the ST pin ...

Page 9

LIS244AL 3 Functionality The LIS244AL is an ultra compact low-power, analog output two-axis linear accelerometer packaged in a LGA package. The complete device includes a sensing element and an IC interface able to take the information from the sensing element ...

Page 10

Application hints 4 Application hints Figure 3. LIS244AL Electrical connection GND Digital signals Power supply decoupling capacitors (100nF ceramic or polyester + 10µF Aluminum) should be placed as near as possible to the device (common ...

Page 11

LIS244AL The tolerance of the internal resistor can vary typically of 32kΩ; thus the cut-off frequency will vary accordingly. A minimum capacitance of 2.5nF for C ( required. load Table 6. Filter Capacitor Selection, C Cut-off frequency 4.1 ...

Page 12

Package information 5 Package information In order to meet environmental requirements, ST offers these devices in ECOPACK® packages. These packages have a Lead-free second level interconnect. The category of second Level Interconnect is marked on the package and on the ...

Page 13

LIS244AL Figure 5. LGA 16: mechanical data & package dimensions mm Ref. Min. Typ. Max. Min 0.160 0.20 D1 3.850 4.0 E1 3.850 4.0 L 0.65 L1 1.95 N 0.98 N1 1.90 T1 0.40 T2 0.30 ...

Page 14

Revision history 6 Revision history Table 7. Document revision history Date 29-Jun-2007 14/15 Revision 1 Initial release LIS244AL Changes ...

Page 15

... LIS244AL Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. All ST products are sold pursuant to ST’s terms and conditions of sale. ...

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