LIS2L02AQ3 STMicroelectronics, LIS2L02AQ3 Datasheet - Page 10

• Manufacturer Part Number: LIS2L02AQ3
• Description: Board Mount Accelerometers 2-axis +/-2g/+/-6g MEMS Intertial Sensr
• Manufacturer: STMicroelectronics

Specifications of LIS2L02AQ3

• Sensing Axis: X, Y
• Acceleration: 2 g, 6 g
• Sensitivity: 500 mV/g, 15000 mV/g
• Package / Case: QFN-44
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

4 Application hints
4
Figure 3.
10/17
10µF
GND
Application hints
Power supply decoupling capacitors (100nF ceramic or polyester + 10µF Aluminum) should be
placed as near as possible to the device (common design practice).
The LIS2L02AQ3 allows to band limit Voutx, Vouty and Voutz through the use of external
capacitors. The re-commended frequency range spans from DC up to 1.5 KHz. In particular,
capacitors must be added at output pins to implement low-pass filtering for antialiasing and
noise reduction. The equation for the cut-off frequency (f
Taking into account that the internal filtering resistor (R
110kOhm, the equation for the external filter cut-off frequency may be simplified as follows:
The tolerance of the internal resistor can vary typically of
110kΩ; thus the cut-off frequency will vary accordingly. A minimum capacitance of 320 pF for
C
100nF
f
GND
(x, y, z) is required in any case.
LIS2L02AQ3 Electrical Connection
Vdd
ST
GND
1
11
12
44
LIS2L02AQ3
(top view)
Cload x
Cload y
f
t
=
CD00059664
34
22
--------------------------------------------------------------- -
2π R
f
t
=
⋅
Optional
Optional
33
23
---------------------------------- -
C
ou t
res
loa d
1.45µF
GND
⋅
GND
C
(
1
x y z
lo ad
Vout X
Vout Y
, ,
Vdd
(
out
x y z
)
, ,
t
) of the external filters is:
) has a nominal value equal to
±
20%
)
within its nominal value of
Digital signals
DIRECTION OF THE
DETECTABLE
ACCELERATIONS
1
LIS2L02AQ3
Y
X