LIS332AR STMicroelectronics, LIS332AR Datasheet - Page 10

• Manufacturer Part Number: LIS332AR
• Description: Board Mount Accelerometers Digital 2.4v - 3.3v 100 Noise 0.3mA
• Manufacturer: STMicroelectronics

Specifications of LIS332AR

• Sensing Axis: X, Y, Z
• Acceleration: 2 g
• 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
• Mounting Style: SMD/SMT
• Shutdown: Yes
• Sensitivity: 0.6 V/g
• Package / Case: LGA-16
• Output Type: Analog - Voltage
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Application hints
6
10/14
Application hints
Figure 3.
Power supply decoupling capacitors (100 nF ceramic or polyester + 10 µF aluminum) should
be placed as near as possible to the device (common design practice).
The LIS332AR allows band limiting of Voutx, Vouty and Voutz through the use of external
capacitors. The recommended frequency range spans from DC up to 2.0 kHz. Capacitors
must be added at the output pins to implement low-pass filtering for anti-aliasing and noise
reduction. The equation for the cut-off frequency ( f
Taking into account that the internal filtering resistor (R
equation for the external filter cut-off frequency may be simplified as follows:
The tolerance of the internal resistor can vary ±15% (typ) from its nominal value of 32 kΩ;
thus the cut-off frequency will vary accordingly. A minimum capacitance of 2.5 nF for C
(x, y, z) is required.
LIS332AR electrical connection
f
t
=
f
----------------------------------------------------------------------- -
2π
t
Doc ID 16931 Rev 1
=
⋅
-------------------------------------- - Hz
C
R
load
out
5µF
(
⋅
x y z
,
C
1
load
t
,
) of the external filters is:
out
)
(
) has a nominal value of 32 kΩ, the
[
x y z
,
]
,
)
LIS332AR
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