ADXRS450_11

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ADXRS450_11
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Description:
High Performance, Digital Output Gyroscope
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PCB Prototype

July 16, 2018:

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PCB Datasheet:1PCB Datasheet:1PCB Datasheet:1PCB Datasheet:1
High Performance,
Digital Output Gyroscope
ADXRS450
FEATURES
Complete rate gyroscope on a single chip
±300°/sec angular rate sensing
High vibration rejection over a wide frequency range
Excellent 25°/hour null offset stability
Internally temperature compensated
2000
g
powered shock survivability
SPI digital output with 16-bit data-word
Low noise and low power
3.3 V and 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, which can be
oriented for pitch, roll, or yaw response
GENERAL DESCRIPTION
The ADXRS450 is an angular rate sensor (gyroscope) intended
for industrial, medical, instrumentation, stabilization, and other
high performance applications. An advanced, differential, quad
sensor design rejects the influence of linear acceleration, enabling
the ADXRS450 to operate in exceedingly harsh environments
where shock and vibration are present.
The ADXRS450 uses an internal, continuous self-test archi-
tecture. 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 baseband rate data and internally analyzed.
The ADXRS450 is capable of sensing angular rate of up to
±300°/sec. Angular rate data is presented as a 16-bit word, as
part of a 32-bit SPI message.
The ADXRS450 is available in a cavity plastic 16-lead SOIC
(SOIC_CAV) and an SMT-compatible vertical mount package
(LCC_V), and is capable of operating across both a wide voltage
range (3.3 V to 5 V) and temperature range (−40°C to +105°C).
APPLICATIONS
Rotation sensing medical applications
Rotation sensing industrial and instrumentation
High performance platform stabilization
FUNCTIONAL BLOCK DIAGRAM
CP5
VX
HIGH VOLTAGE
GENERATION
ADXRS450
P
DD
LDO
REGULATOR
DV
DD
AV
DD
HV DRIVE
CLOCK
PHASE-
DIVIDER
LOCKED
LOOP AMPLITUDE
DETECT
BAND-PASS
FILTER
DEMOD
ALU
REGISTERS/MEMORY
DECIMATION
FILTER
TEMPERATURE
CALIBRATION
ADC 12
SPI
INTERFACE
MOSI
MISO
SCLK
CS
Z-AXIS ANGULAR
RATE SENSOR
Q DAQ
P DAQ
Q FILTER
ST
CONTROL
FAULT
DETECTION
DV
SS
P
SS
08952-001
EEPROM
AV
SS
Figure 1.
Rev. 0
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responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
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