Datasheet ADXC1500 (Analog Devices)

Combined Gyroscope and Dual-Axis Accelerometer Data Sheet ADXC1500 FEATURES GENERAL DESCRIPTION Combined gyroscope and dual-axis, low g accelerometer
The ADXC1500 is a yaw rate gyroscope and dual-axis
Temperature compensated, high precision bias, and
accelerometer combined in a single package. It is designed for
sensitivity performance
electronic stability control (ESC) and other high performance
±30 mg accelerometer bias stability over temperature
applications that require yaw rate and acceleration signals simultan-
±2°/sec gyroscope null stability over temperature
eously. An internal temperature sensor compensates offset and
2.5 mg rms typical accelerometer noise at 35.6 Hz
sensitivity performance, providing excellent stability over the
0.1°/sec rms typical gyroscope noise at 35.6 Hz
−40°C to +105°C temperature range.
Gyroscope: linear acceleration rejection of 0.03°/sec/g
A digital serial port interface (SPI) transmits the yaw rate and
Acceleration: ±32 g overload performance
acceleration data to a host microcontrol er. A 4-bit cyclical
SPI digital output with a 16-bit data-word and a 4-bit CRC
redundancy check (CRC) provides fault coverage for the
Comprehensive electromechanical fail-safe features
transmitted SPI data, and internal fault detection routines
6 kHz data update rate
ensure the integrity of al reported yaw rates and acceleration
Programmable filter response
data. A ful y integrated electromechanical continuous self test
<16 mA quiescent current draw
(CST) routine provides run-time diagnostic capability for
3.3 V or 5 V operation
assessing the health of each MEMS element.
−40°C to +105°C temperature range 16-lead inverted cavity SOIC package for robust EMI
An advanced gyroscope sensor design rejects the linear accel-
performance
eration effects of shock and vibration, enabling the ADXC1500
Qualified for automotive applications
to operate in harsh environments. The accelerometer signal chain is designed to prevent overload conditions from
APPLICATIONS
occurring in these same harsh environments.
Electronic stability control
The ADXC1500 is designed to operate at either 3.3 V or 5 V. At
Chassis control
less than 16 mA current consumption, the ADXC1500 can be used in energy sensitive applications.
FUNCTIONAL BLOCK DIAGRAM MISO MOSI SCLK CS SYNC TPA TPB ACCELERATION GYROSCOPE SENSOR SENSOR SPI INTERFACE REGISTERS/MEMORY TEST/DEBUG DIE DIE ADXC1500 Σ-Δ NVM MOD XY AFE CORIOLIS BAND- Σ-Δ PASS Σ-Δ AFE MOD FILTER MOD XY SENSOR ALU RESONATOR PHASE- CLOCK LOCKED Σ-Δ TEMP Z-AXIS AFE GENERATION LOOP MOD SENSOR GYROSCOPE TRIM SYSTEM AND CONTROLLER Σ-Δ Z SELF TEST MOD AFE Z SENSOR HIGH VOLTAGE GENERATION VOLTAGE REGULATION
001
CP VSA VSD AVDD DVDD AGND DGND VSIO VCM
13032- Figure 1. For more information about the ADXC1500, contact the Analog Devices, Inc., Customer Interaction Center at http://www.analog.com/technical_support to connect with a technical support specialist.
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Document Outline Features Applications General Description Functional Block Diagram Notes