Preliminary data
This is preliminary information on a new product now in development or undergoing evaluation. Details are subject to
change without notice.
July 2009 Doc ID 15804 Rev 2 1/12
12
LPY503AL
MEMS motion sensor:
dual axis pitch and yaw ±30°/s analog gyroscope
Features
2.7 V to 3.6 V single-supply operation
Wide operating temperature range
(-40 °C to +85 °C)
High stability overtemperature
Analog absolute angular-rate output
Two separate outputs for each axis
(1x and 4x amplified)
Integrated low-pass filters
Low power consumption
Embedded power-down
Embedded self-test
High shock and vibration survivability
ECOPACK
®
RoHS and “Green” compliant
(see Section 5)
Applications
Image stabilization for DSC DVC
Motion control with user interface
Industrial and robotics
Description
The LPY503AL is a low-power dual-axis
micromachined gyroscope capable of measuring
angular rate along pitch and yaw axes.
It provides excellent temperature stability and
high resolution over an extended operating
temperature range (-40 °C to +85 °C).
The LPY503AL has a full scale of ±30 °/s and is
capable of detecting rates with a -3 dB bandwidth
up to 140 Hz.
The gyroscope is the combination of one actuator
and one accelerometer integrated in a single
micromachined structure.
It includes a sensing element composed by single
driving mass, kept in continuos oscillating
movement and able to react when an angular rate
is applied based on the Coriolis principle.
A CMOS IC provides the measured angular rate
to the external world through an analog output
voltage, allowing high level of integration and
production trimming to better match sensing
element characteristics.
ST’s gyroscope family leverages on robust and
mature manufacturing process already used for
the production of micromachined accelerometers.
ST is already in the field with several hundreds
million sensors with excellent acceptance from
the market in terms of quality, reliability and
performance.
LPY503AL is provided in plastic land grid array
(LGA) package. Several years ago ST pioneered
successfully the usage of this package for
accelerometers. Today ST has the widest
manufacturing capability and strongest expertise
in the world for production of sensor in plastic
LGA package.
LGA-16L (5x5x1.5mm)
Table 1. Device summary
Order code Temperature range (°C) Package Packing
LPY503AL -40 to +85 LGA-16 (5x5x1.5) Tray
LPY503ALTR -40 to +85 LGA-16 (5x5x1.5) Tape and reel
www.st.com
Contents LPY503AL
2/12 Doc ID 15804 Rev 2
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
2.3 Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3 Terminology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.1 Sensitivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.2 Zero-rate level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.3 Self-test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.4 High pass filter reset (HP) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
4 Application hints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
4.1 Output response vs. rotation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
4.2 Soldering information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
5 Package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
6 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
LPY503AL Block diagram and pin description
Doc ID 15804 Rev 2 3/12
1 Block diagram and pin description
Figure 1. Block diagram
1.1 Pin description
Figure 2. Pin connection
+
-
CLOCK
TRIMMING
CIRCUITS
REFERENCE
DEMODULATOR
CHARGE
AMPLIFIER
PHASE GENERATOR
SWITCHED
4x OUT X (amplified)
X/Z
LOW-PASS
CAPACITOR
FILTER
DRIVING MASS
DEMODULATOR
CHARGE
AMPLIFIER
SWITCHED
4x OUT Z(amplified)
LOW-PASS
CAPACITOR
FILTER
Optional
Filter
LP/HP
Optional
Filter
LP/HP
GAIN
GAIN
Not amplified
Not amplified
4x
4x
Feedback loop
+
-
+
x
+
z
filtered output X
filtered output Z
(TOP VIEW)
DIRECTION OF THE
DETECTABLE
ANGULAR RATES
GND
VCONT
4xINZ
FILTVDD
4xOUTX
Vref
OUTZ
ST
Vdd
Res
OUTX
4xINX
HP
1614
6
8
9
13
1
5
(BOTTOM VIEW)
Res
4xOUTZ
PD
+
x
+
z

LPY503AL

Mfr. #:
Manufacturer:
STMicroelectronics
Description:
Gyroscopes Dual 8.3 mV deg/s LGA-16
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
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