Datasheet ADXRS800 (Analog Devices)

High Performance, SPI Digital Output, Angular Rate Sensor Data Sheet ADXRS800 FEATURES GENERAL DESCRIPTION Excellent null offset stability over temperature
The ADXRS800 is an angular rate sensor (gyroscope) intended
High vibration rejection over a wide frequency range
for automotive electronic stability control, vehicle rollover
2000 g powered shock survivability
detection, and other high performance applications. An advanced,
SPI digital output with 16-bit data-word
differential, quad-sensor design rejects the influence of linear
Low noise
acceleration, enabling the ADXRS800 to operate in exceedingly
Continuous self-test
harsh environments where shock and vibration are present.
Fail-safe functions
The ADXRS800 uses an internal, continuous self-test archi-
Temperature sensor
tecture. The integrity of the electromechanical system is checked
3.3 V and 5 V operation
by applying a high frequency electrostatic force to the sense
−40°C to +105°C operation
structure to generate a rate signal that can be differentiated
Small, low-profile industry standard SOIC package provides
from the baseband rate data and internally analyzed.
yaw rate (Z-axis) response Innovative ceramic vertical mount package (VMP) provides
The ADXRS800 is capable of sensing an angular rate of up to
pitch and roll rate response
±300°/sec. Angular rate data is presented as a 16-bit word, as
Qualified for automotive applications
part of a 32-bit SPI message.
APPLICATIONS
The ADXRS800 is available in a cavity plastic SOIC-16 and an SMT-compatible vertical mount package and is capable of
Electronic stability control
operating across both a wide voltage range (3.3 V to 5 V) and
High performance platform stabilization
temperature range (−40°C to +105°C).
FUNCTIONAL BLOCK DIAGRAM CP5 VX HIGH VOLTAGE P GENERATION DD ADXRS800 LDO REGULATOR DVDD HV DRIVE AVDD CLOCK ALU PHASE DIVIDER LOCKED DECIMATION LOOP Y AMPLITUDE FILTER R DETECT MOSI TEMPERATURE MEMO BAND-PASS CALIBRATION S/ DEMOD SPI MISO FILTER ADC 12 INTERFACE ER SCLK IST CS FAULT EG Q FILTER R Q DAQ DETECTION Z-AXIS ANGULAR RATE SENSOR DV ST SS P DAQ CONTROL PSS AVSS EEPROM
001 09106- 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.
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Document Outline FEATURES APPLICATIONS GENERAL DESCRIPTION FUNCTIONAL BLOCK DIAGRAM NOTES