High Performance, SPI Digital Output,
Angular Rate Sensor
Data Sheet
ADXRS800
Rev. SpC Document Feedback
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FEATURES
Excellent null offset stability over temperature
High vibration rejection over a wide frequency range
2000 g powered shock survivability
SPI digital output with 16-bit data-word
Low noise
Continuous self-test
Fail-safe functions
Temperature sensor
3.3 V and 5 V operation
−40°C to +105°C operation
Small, low-profile industry standard SOIC package provides
yaw rate (Z-axis) response
Innovative ceramic vertical mount package (VMP) provides
pitch and roll rate response
Qualified for automotive applications
APPLICATIONS
Electronic stability control
High performance platform stabilization
GENERAL DESCRIPTION
The ADXRS800 is an angular rate sensor (gyroscope) intended
for automotive electronic stability control, vehicle rollover
detection, and other high performance applications. An advanced,
differential, quad-sensor design rejects the influence of linear
acceleration, enabling the ADXRS800 to operate in exceedingly
harsh environments where shock and vibration are present.
The ADXRS800 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 ADXRS800 is capable of sensing an 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 ADXRS800 is available in a cavity plastic SOIC-16 and
an SMT-compatible vertical mount package 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).
FUNCTIONAL BLOCK DIAGRAM
SPI
INTERFACE MISO
MOSI
SCLK
CS
HIGH VOLTAGE
GENERATION
EEPROM
P
SS
CP5
AV
SS
V
X
LDO
REGULATOR
P
DD
DV
SS
DV
DD
AV
DD
REGISTERS/MEMORY
BAND-PASS
FILTER
FAULT
DETECTION
TEMPERATURE
CALIBRATION
DECIMATION
FILTER
ALU
PHASE
LOCKED
LOOP
CLOCK
DIVIDER
DEMOD
Q FILTER
Q DAQ
P DAQ
HV DRIV E
ST
CONTROL
ADC 12
AMPLITUDE
DETECT
09106-001
Z- AX I S ANGUL AR
RATE SENSOR
ADXRS800
Figure 1.
For more information about the ADXRS800, contact the Analog Devices, Inc., Customer Interaction Center at
http://www.analog.com/en/content/technical_support_page/fca.html to connect with a technical support specialist.
