ADXRS453 Datasheet, PDF (1/32 Pages) Analog Devices – High Performance , Digital Output Gyroscope

FEATURES
Complete rate gyroscope on a single chip
±300°/sec angular rate sensing
Ultrahigh vibration rejection: 0.01°/sec/g
Excellent 16°/hour null bias stability
Internal temperature compensation
2000 g powered shock survivability
SPI digital output with 16-bit data-word
Low noise and low power
3.3 V to 5 V operation
−40°C to +105°C operation
Ultrasmall, light, and RoHS compliant
Two package options
Low cost SOIC_CAV package for yaw rate (z-axis) response
Innovative ceramic vertical mount package (LCC_V), which
can be oriented for pitch, roll, or yaw response
APPLICATIONS
Rotation sensing in high vibration environments
Rotation sensing for industrial and instrumentation
applications
High performance platform stabilization
High Performance,
Digital Output Gyroscope
ADXRS453
GENERAL DESCRIPTION
The ADXRS453 is an angular rate sensor (gyroscope) intended
for industrial, instrumentation, and stabilization applications in
high vibration environments. An advanced, differential, quad
sensor design rejects the influence of linear acceleration, enabling
the ADXRS453 to offer high accuracy rate sensing in harsh envi-
ronments where shock and vibration are present.
The ADXRS453 uses an internal, continuous self-test architec-
ture. The integrity of the electromechanical system is checked by
applying a high frequency electrostatic force to the sense structure
to generate a rate signal that can be differentiated from the base-
band rate data and internally analyzed.
The ADXRS453 is capable of sensing an angular rate of up to
±300°/sec. Angular rate data is presented as a 16-bit word that
is part of a 32-bit SPI message.
The ADXRS453 is available in a 16-lead plastic cavity SOIC
(SOIC_CAV) and an SMT-compatible vertical mount package
(LCC_V), and is capable of operating across a wide voltage
range (3.3 V to 5 V).
CP5
V_X
FUNCTIONAL BLOCK DIAGRAM
HIGH VOLTAGE
GENERATION
HV DRIVE
CLOCK
PHASE- DIVIDER
LOCKED
LOOP _AMPLITUDE
DETECT
BAND-PASS
FILTER
12-BIT
ADC
Z-AXIS ANGULAR
RATE SENSOR
Q DAQ
P DAQ
ADXRS453
DEMOD
Q FILTER
SELF-TEST
CONTROL
ARITHMETIC
LOGIC UNIT
DECIMATION
FILTER
TEMPERATURE
CALIBRATION
FAULT
DETECTION
EEPROM
Figure 1.
LDO
REGULATOR
P_DD
DV_DD
AV_DD
SPI
INTERFACE
MOSI
MISO
SCLK
CS
DV_SS
P_SS
AV_SS
Rev. 0
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