LIS3L02DQ STMicroelectronics, LIS3L02DQ Datasheet

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LIS3L02DQ

Manufacturer Part Number
LIS3L02DQ
Description
ACCELEROMETER TRPL AXIS 44QFN
Manufacturer
STMicroelectronics
Datasheet

Specifications of LIS3L02DQ

Axis
X, Y, Z
Acceleration Range
±2g
Sensitivity
1024 LSb/g
Voltage - Supply
2.7 V ~ 3.6 V
Output Type
Digital
Bandwidth
1.5kHz
Interface
I²C, SPI
Mounting Type
Surface Mount
Package / Case
44-QFN
Sensing Axis
X, Y, Z
Acceleration
2 g
Digital Output - Number Of Bits
12 bit
Supply Voltage (max)
3.6 V
Supply Voltage (min)
2.7 V
Supply Current
1 mA
Maximum Operating Temperature
+ 70 C
Minimum Operating Temperature
- 20 C
Digital Output - Bus Interface
I2C, SPI
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
497-4129
LIS3L02DQ
Q2094276
Figure 2. Block Diagram
1
2
The LIS3L02DQ is a three axes digital output lin-
ear accelerometer that includes a sensing element
and an IC interface able to take the information
from the sensing element and to provide the mea-
sured acceleration signals to the external world
through an I
The sensing element, capable of detecting the ac-
celeration, is manufactured using a dedicated pro-
cess developed by ST to produce inertial sensors
and actuators in silicon.
The IC interface instead is manufactured using a
CMOS process that allows high level of integration
to design a dedicated circuit which is factory
trimmed to better match the sensing element char-
acteristics.
A self-test capability allows the user to check the
May 2005
2.7V TO 3.6V SINGLE SUPPLY OPERATION
1.8V COMPATIBLE IOs
12 BIT RESOLUTION
I
INTERRUPT ACTIVATED BY MOTION
PROGRAMMABLE INTERRUPT THRESHOLD
EMBEDDED SELF TEST
HIGH SHOCK SURVIVABILITY
ECO-PACK COMPLIANT
2
C/SPI DIGITAL OUTPUT INTERFACES
Features
Description
3-Axis - ±2g DIGITAL OUTPUT LINEAR ACCELEROMETER
a
SELF TEST
2
C/SPI serial interface.
X+
Y+
Z+
Z-
Y-
X-
REFERENCE
MUX
AMPLIFIER
CHARGE
TRIMMING
CIRCUITS
MUX
DE
Σ∆
Σ∆
Σ∆
functioning of the system.
The device may be configured to generate an iner-
tial wake-up/interrupt signal when a programma-
ble acceleration threshold is exceeded at least
along one of the three axes.
The LIS3L02DQ is available in plastic SMD pack-
age and it is specified over a temperature range
extending from -20°C to +70°C.
The LIS3L02DQ belongs to a family of products
suitable for a variety of applications:
Figure 1. Package
Table 1. Order Codes
LIS3L02DQ-TR
– Motion activated functions in mobile terminals
– Antitheft systems and Inertial navigation
– Gaming and Virtual Reality input devices
– Vibration Monitoring and Compensation
Part Number
LIS3L02DQ
MEMS INERTIAL SENSOR:
CLOCK
Reconstruction
Reconstruction
Reconstruction
Filter
Filter
Filter
CONTROL LOGIC
INTERRUPT GEN.
Package
QFN-44
Regs
Array
QFN44
QFN44
&
LIS3L02DQ
SPI
I
2
C
CS
SCL/SPC
SDA/SDO/SDI
SDO
RDY/INT
Tape & Reel
Finishing
Tray
Rev. 4
1/20

Related parts for LIS3L02DQ

LIS3L02DQ Summary of contents

Page 1

... HIGH SHOCK SURVIVABILITY ■ ECO-PACK COMPLIANT 2 Description The LIS3L02DQ is a three axes digital output lin- ear accelerometer that includes a sensing element and an IC interface able to take the information from the sensing element and to provide the mea- sured acceleration signals to the external world ...

Page 2

... SPI Serial Port Clock (SPC SPI enable 2 I C/SPI mode selection ( Vdd_IO Power supply for I/O pads 21 Vdd Power supply 22 GND 0V supply Internally not connected Figure 3. Pin Connection (Top view DIRECTION OF THE DETECTABLE ACCELERATIONS 2/20 Function 2 C mode; 0: SPI enabled GND Vdd NC LIS3L02DQ ...

Page 3

... Z axis T = 25°C +100 7 Vdd=3.3V X axis Ratiometric Vs Vdd T = 25°C -100 Vdd=3.3V Y axis Ratiometric Vs Vdd T = 25°C -100 Vdd=3.3V Z axis Ratiometric Vs Vdd all axes LIS3L02DQ 2 Max. Typ. ±2.0 1024 1074 ±0.2 -52 0 +52 ±0.8 ±0.3 ±1.5 ±0.6 ±2.0 ±2 ±4 +250 ...

Page 4

... LIS3L02DQ Table 4. Electrical Characteristics (Temperature range -20°C to +70°C). All the parameters are specified @ Vdd=3.3V and T=25°C unless otherwise noted. Symbol Parameter Vdd Supply Voltage Vdd_IO I/O pads Supply Voltage Idd Supply Current IddPdn Current Consumption in Power-Down Mode BW Digital Filter Cut-Off ...

Page 5

... The sensor will generate a defined signal and the interface chip will perform the signal conditioning. If the output signal changes within the specified amplitude than the sensor is working properly and the parameters of the interface chip are within tolerance. Self Test changes linearly with power supply. LIS3L02DQ 5/20 ...

Page 6

... The acceleration data may be accessed through an I suitable for direct interfacing with a microcontroller. The LIS3L02DQ features a Data-Ready signal (RDY) which indicates when a new set of measured accel- eration data is available thus simplifying data synchronization in digital systems. The LIS3L02DQ may also be configured to generate an inertial wake-up/interrupt signal when a program- mable acceleration threshold is exceeded along one of the three axes ...

Page 7

... Application Hints Figure 4. LIS3L02DQ Electrical Connection 10uF 100nF Vdd GND Digital signal from/to signal controller. Signal’s levels are defined by proper selection of Vdd_IO The device core is supplied through Vdd line (Vdd typ=3.3V) while the I/O pads are supplied through Vdd_IO. Power supply decoupling capacitors (100 nF ceramic, 10 µF Al) should be placed as near as pos- sible to the device (common design practice) ...

Page 8

... There are two signals associated with the I (SDA). The latter is a bidirectional line used for sending and receiving the data to/from the interface. Both the lines are connected to Vdd through a pull-up resistor embedded inside the LIS3L02DQ. When the bus is free both lines are high. ...

Page 9

... The I C embedded inside the LIS3L02DQ behaves like a slave device and the following protocol must be adhered to. After the start condition (ST) a slave address is sent, once a slave acknowledge has been returned, a 8-bit sub-address will be transmitted: the 7 LSB represent the actual register address while the MSB enables address autoincrement ...

Page 10

... LIS3L02DQ 6.3 SPI Bus Interface The SPI interface present inside the LIS3L02DQ is a bus slave. The SPI allows to write and read the reg- isters of the device. The Serial Interface interacts with the outer world with 4 wires: CS, SPC, SDI and SDO.The maximum frequency is related to the Vdd_IO supply voltage.In particular in the 2 3.6 V range is 8 MHz while under 2 MHz. 6.3.1 Read & ...

Page 11

... AD(6:0). This is the address field of the indexed register. – bit 8-15: data DO(7:0) (read mode). This is the data that will be read from the device (MSB first). DI7 DI6 DI5 DI4 DI3 DI2 DI1 DO7 DO6 DO5 DO4 DO3 DO2 DO1 DO0 LIS3L02DQ DI0 11/20 ...

Page 12

... LIS3L02DQ 7 Registers mapping The table given below provides a listing of the registers embedded in the device and the related address- es. Table 8. Registers address map Reg. Name Type OFFSET_X rw OFFSET_Y rw OFFSET_Z rw GAIN_X rw GAIN_Y rw GAIN_Z rw CTRL_REG1 rw CTRL_REG2 rw WAKE_UP_CFG rw WAKE_UP_SRC r WAKE_UP_ACK r STATUS_REG rw OUTX_L r OUTX_H r OUTY_L r OUTY_H ...

Page 13

... OX3 OY6 OY5 OY4 OY3 OZ6 OZ5 OZ4 OZ3 GX6 GX5 GX4 GX3 GY6 GY5 GY4 GY3 GZ6 GZ5 GZ4 GZ3 LIS3L02DQ OX2 OX1 OX0 OY2 OY1 OY0 OZ2 OZ1 OZ0 GX2 GX1 GX0 GY2 GY1 GY0 GZ2 GZ1 GZ0 13/20 ...

Page 14

... LIS3L02DQ 8.7 CTRL_REG1 (20h) Control Register 1 and 2 allow to influence the signal chain and start up conditions as well as the commu- nication setup. PD1 PD1, PD0 Power Down Control. Default value: 00 (00: power-down mode; x1,1x: normal mode) DF1, DF0 Decimation Factor Control. Default value: 00 (00: decimate by 128 ...

Page 15

... YL Y Low. Default value: 0 (0: no interrupt; 1:ZH event has occurred High. Default value: 0 (0: no interrupt; 1:XH event has occurred Low. Default value: 0 (0: no interrupt; 1:XL event has occurred) LIR ZHIE ZLIE YHIE LIS3L02DQ YLIE XHIE XLIE 15/20 ...

Page 16

... LIS3L02DQ 8.11 WAKE_UP_ACK (25h) Reading at this address resets the WAKE_UP_SOURCE register. 8.12 A_STATUS_REG (27h) ZYXOR ZYXOR X, Y and Z axis Data Overrun ZOR Z axis Data Overrun YOR Y axis Data Overrun XOR X axis Data Overrun ZYXDA X, Y and Z axis new Data Available ZDA ...

Page 17

... THS14 THS15, THS8 Inertial Wake Up Acceleration Threshold Msb YD13 YD12 YD11 ZD6 ZD5 ZD4 ZD3 ZD13 ZD12 ZD11 THS5 THS4 THS3 THS13 THS12 THS11 LIS3L02DQ YD10 YD9 YD8 ZD2 ZD1 ZD0 ZD10 ZD9 ZD8 THS2 THS1 THS0 THS10 THS9 THS8 17/20 ...

Page 18

... LIS3L02DQ 9 Package Information Figure 9. QFN-44 Mechanical Data & Package Dimensions mm DIM. MIN. TYP. MAX. A 1.70 1.80 1.90 A1 0.19 0.21 b 0.20 0.25 0.30 D 7.0 E 7.0 e 0.50 J 5.04 5.24 K 5.04 5.24 L 0.38 0.48 0. REF 18/20 inch MIN. TYP. MAX. 0.067 0.071 0.075 0.007 ...

Page 19

... Changed some data on the Table 3 Electrical Characteristics. Changed the section 6.8 CTRL_REG2 (21h). 3 The title in first page has been changed as the following: INERTIAL SENSOR: 3-Axis - 2g DIGITAL OUTPUT LINEAR ACCELEROMETER 4 Revision of parameters. Major paragraph rearrangement. LIS3L02DQ Description of Changes 19/20 ...

Page 20

... LIS3L02DQ Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject to change without notice ...

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