LIS302DLTR STMicroelectronics, LIS302DLTR Datasheet - Page 16
![ACCELEROMETER 3AXIS MEMS 14-LGA](/photos/18/36/183612/14-lga_pkg_sml.jpg)
LIS302DLTR
Manufacturer Part Number
LIS302DLTR
Description
ACCELEROMETER 3AXIS MEMS 14-LGA
Manufacturer
STMicroelectronics
Datasheet
1.STEVAL-MKI006V1.pdf
(42 pages)
Specifications of LIS302DLTR
Featured Product
STM32 Cortex-M3 Companion Products
Axis
X, Y, Z
Acceleration Range
±2.3g, 9.2g
Sensitivity
18mg/digit, 72mg/digit
Voltage - Supply
2.16 V ~ 3.6 V
Output Type
Digital
Bandwidth
100Hz ~ 400Hz Selectable
Interface
I²C, SPI
Mounting Type
Surface Mount
Package / Case
14-LGA
Sensing Axis
X, Y, Z
Acceleration
2 g, 8 g
Digital Output - Number Of Bits
8 bit
Supply Voltage (max)
3.6 V
Supply Voltage (min)
2.16 V
Supply Current
0.3 mA
Maximum Operating Temperature
+ 85 C
Minimum Operating Temperature
- 40 C
Digital Output - Bus Interface
I2C, SPI
Shutdown
Yes
For Use With
497-9047 - BOARD DEMO ACCELEROMETER DIL24497-8373 - BOARD EVAL EXTENSION SN250497-8204 - BOARD ADAPTER LIS302SG DIL24497-8203 - BOARD DEMO LIS302SG497-6404 - BOARD EVAL SPZB260 MOD FOR STR9497-6342 - BOARD EVALUATION FOR LIS302DL497-6246 - BOARD EVAL ACCELEROM LIS302ALK497-6227 - BOARD ADAPTER 20DIP LIS3LV02DL497-6226 - BOARD EVAL ACCELEROM LIS3LV02DL
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
497-5911-2
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
LIS302DLTR
Manufacturer:
ST
Quantity:
1 056
Part Number:
LIS302DLTR
Manufacturer:
ST
Quantity:
20 000
Company:
Part Number:
LIS302DLTR8
Manufacturer:
SONY
Quantity:
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Part Number:
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20 000
Functionality
3
3.1
3.2
3.3
16/42
Functionality
The LIS302DL is a ultracompact, low-power, digital output 3-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 and to provide a signal to the
external world through an I
Sensing element
A proprietary process is used to create a surface micro-machined accelerometer. The
technology allows to carry out suspended silicon structures which are attached to the
substrate in a few points called anchors and are free to move in the direction of the sensed
acceleration. To be compatible with the traditional packaging techniques a cap is placed on
top of the sensing element to avoid blocking the moving parts during the moulding phase of
the plastic encapsulation.
When an acceleration is applied to the sensor the proof mass displaces from its nominal
position, causing an imbalance in the capacitive half-bridge. This imbalance is measured
using charge integration in response to a voltage pulse applied to the sense capacitor.
At steady state the nominal value of the capacitors are few pF and when an acceleration is
applied the maximum variation of the capacitive load is in fF range.
IC interface
The complete measurement chain is composed by a low-noise capacitive amplifier which
converts into an analog voltage the capacitive unbalancing of the MEMS sensor and by
analog-to-digital converters.
The acceleration data may be accessed through an I
device particularly suitable for direct interfacing with a microcontroller.
The LIS302DL features a Data-Ready signal (RDY) which indicates when a new set of
measured acceleration data is available thus simplifying data synchronization in the digital
system that uses the device.
The LIS302DL may also be configured to generate an inertial Wake-Up and Free-Fall
interrupt signal accordingly to a programmed acceleration event along the enabled axes.
Both Free-Fall and Wake-Up can be available simultaneously on two different pins.
Factory calibration
The IC interface is factory calibrated for sensitivity (So) and Zero-g level (Off).
The trimming values are stored inside the device by a non volatile memory. Any time the
device is turned on, the trimming parameters are downloaded into the registers to be used
during the normal operation. This allows the user to use the device without further
calibration.
2
C/SPI serial interface.
2
C/SPI interface thus making the
LIS302DL