STMICROELECTRONICS STEVAL

STEVAL-MKI021V1
MEMS 3-axis ± 2g analog-output demonstration board
based on the nano accelerometer LIS331AL
Data brief
Features
■
3-axis, ±2g motion sensor with analog output
■
embedded self-test
■
high shock survivability (up to 10000g per 0.1
sec)
■
RoHS compliant
Description
The STEVAL-MKI021V1 demonstration board is
designed to provide the user with a complete,
ready-to-use platform for the evaluation of the
LIS331AL.
STEVAL-MKI021V1
The LIS331AL is the smallest consumer lowpower 3-axis linear capacitive accelerometer. It
includes a sensing element and an IC interface
capable of taking information from the sensing
element and providing an analog signal to an
external application.
In addition to the MEMS sensor, the system
includes a linear voltage regulator and a rail-to-rail
low-noise quad amplifier configured as a noninverting buffer, making both direct sensor outputs
and buffered sensor outputs available to the user.
The STEVAL-MKI021V1 also provides an easy
mean of controlling the power-down and self-test
pins.
February 2011
Doc ID 18300 Rev 1
For further information contact your local STMicroelectronics sales office.
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Circuit schematic
STEVAL-MKI021V1
Circuit schematic
Demonstration board schematic and connection diagram
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STEVAL-MKI021V1
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Revision history
Revision history
Table 1.
Document revision history
Date
Revision
23-Feb-2011
1
Changes
Initial release.
Doc ID 18300 Rev 1
3/4
STEVAL-MKI021V1
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