4 Application hints

LIS2L02AQ3

10/17

CD00059664

4

Application hints

Figure 3.

LIS2L02AQ3 Electrical Connection

Power supply decoupling capacitors (100nF ceramic or polyester + 10

µF 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

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

within its nominal value of

110k

Ω; thus the cut-off frequency will vary accordingly. A minimum capacitance of 320 pF for

res

Vout Y

100nF

LIS2L02AQ3

10

µF

Vdd

Vout X

GND

GND

Vdd

GND

1

44

34

33

11

12

22

23

DIRECTION OF THE

DETECTABLE

ACCELERATIONS

Cload x

Cload y

Y

1

X

(top view)

Optional

ST

Digital signals

GND

GND

Optional

f

t

1

2

π R

,,

()

⋅⋅

----------------------------------------------------------------

=

f

t

1.45

µF

C

,,

()

-----------------------------------

=

20%

±