ST LY3100ALH User Manual
high performance ±1000 dps analog yaw-rate gyroscope
Features
■ 2.7 V to 3.6 V single supply operation
■ Wide extended operating temperature range
(-40°C to +85°C)
■ High stability over temperature
■ Analog absolute angular-rate output
■ Integrated low-pass filters
■ Low power consumption
■ Sleep mode
■ Embedded power-down
■ Embedded self-test
■ High shock and vibration survivability
■ ECOPACK
(see Section 6)
Applications
®
RoHS and “Green” compliant
LY3100ALH
MEMS motion sensor:
LGA-10
The LY3100ALH has a full scale of ±1000 dps and
is capable of detecting rates with a -3 dB
bandwidth up to 140 Hz.
The device includes a sensing element composed
of a single driving mass, kept in continuous
oscillation and capable of reacting, based on the
Coriolis principle, when an angular rate is applied.
A CMOS IC provides the measured angular rate
to the external world through an analog output
voltage, allowing high levels of integration and
production trimming to better match sensing
element characteristics.
(3x5x1 mm)
■ Gaming applications
■ Pointing devices, remote and game controllers
■ Motion control with user interface
■ Industrial and robotics
ST's family of gyroscopes leverages on the
mature and robust manufacturing process already
used for the production of micro-machined
accelerometers.
ST is already in the field with several hundred
million sensors which have received excellent
Description
The LY3100ALH is a high performance low-power
single-axis micromachined gyroscope capable of
measuring angular rate along yaw axis.
It provides excellent temperature stability and
high resolution over extended operating
temperature range (-40°C to +85°C).
acceptance from the market in terms of quality,
reliability and performance.
The LY3100ALH is available in a plastic land grid
array (LGA) package, which ST successfully
pioneered for accelerometers.Today ST has the
widest manufacturing capability and strongest
expertise in the world for production of sensors in
plastic LGA packages.
Table 1. Device summary
Order code Temperature range (°C) Package Packing
LY3100ALH -40 to +85 LGA-10 (3x5x1) Tray
LY3100ALHTR -40 to +85 LGA-10 (3x5x1) Tape and reel
October 2009 Doc ID 16570 Rev 1 1/13
www.st.com
13
Contents LY3100ALH
Contents
1 Block diagram and pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.1 Pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2 Mechanical and electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . 5
2.1 Mechanical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.2 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3 Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
4 Terminology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
4.1 Sensitivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
4.2 Zero-rate level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
4.3 Self-test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
4.4 Sleep mode, self test and power down . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
5 Application hints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
5.1 Output response vs. rotation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
5.2 Soldering information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
6 Package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
7 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2/13 Doc ID 16570 Rev 1
LY3100ALH Block diagram and pin description
3
1 Block diagram and pin description
Figure 1. Block diagram
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Doc ID 16570 Rev 1 3/13
Block diagram and pin description LY3100ALH
Table 2. Pin description
Pin # Pin name Analog function
1 Vdd Power supply
2 ST Self-test (see Table 6)
3 VCONT PLL filter connection
4 GND 0V supply voltage
5 Res Leave unconnected or connect to Vdd
6 OUTZ Z axis output voltage
7 Vref Reference voltage
8 SLEEP/PD Sleep mode / power-down mode (see Table 6)
9 Vdd Power supply
10 Res Leave unconnected or connect to Vdd
4/13 Doc ID 16570 Rev 1
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