Four Degrees of Freedom Inertial Sensor
ADIS16300
Rev. A
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FEATURES
14-bit digital gyroscope with digital range scaling
±75°/sec, ±150°/sec, ±300°/sec settings
Tri-axis, 14-bit digital accelerometer
±3 g measurement range
13-bit pitch and roll incline calculations
330 Hz bandwidth
150 ms start-up time
Factory-calibrated sensitivity, bias, and axial alignment
Digitally controlled bias calibration
Digitally controlled sample rate, up to 819.2 SPS
External clock input enables sample rates up to 1200 SPS
Digitally controlled filtering
Programmable condition monitoring
Auxiliary digital input/output
Digitally activated self-test
Programmable power management
Embedded temperature sensor
SPI-compatible serial interface
Auxiliary, 12-bit ADC input and DAC output
Single-supply operation: 4.75 V to 5.25 V
2000 g shock survivability
Operating temperature range: −40°C to +85°C
APPLICATIONS
Medical instrumentation
Robotics
Platform control
Navigation
FUNCTIONAL BLOCK DIAGRAM
MEMS
ANGULAR RATE
SENSOR
TEMPERATURE
SENSOR
SIGNAL
CONDITIONING
AND
CONVERSION
CALIBRATION
AND
DIGITAL
PROCESSING
DIGITAL
CONTROL
POWER
MANAGEMENT
OUTPUT
REGISTERS
AND SPI
INTERFACE
UX_
ADC
AUX_
DAC
RST
CS
SCLK
DIN
DOUT
TRI-AXIS MEMS
ACCELERATION
SENSOR
VCC
GND
DIO4
SELF-TEST
ADIS16300
ALARMS
DIO3DIO2DIO1
07842-001
Figure 1.
GENERAL DESCRIPTION
The ADIS16300 iSensor® is a complete inertial system that
includes a yaw rate gyroscope and tri-axis accelerometer. Each
sensor in the ADIS16300 combines industry-leading iMEMS®
technology with signal conditioning that optimizes dynamic
performance. The factory calibration characterizes each sensor
for sensitivity, bias, alignment, and linear acceleration (gyro bias).
As a result, each sensor has its own dynamic compensation for
correction formulas that provide accurate sensor measurements
over the specified power supply range of +4.75 V to +5.25 V.
The ADIS16300 provides a simple, cost-effective method for
integrating accurate, multi-axis, inertial sensing into industrial
systems, especially when compared with the complexity and
investment associated with discrete designs. All necessary
motion testing and calibration are part of the production
process at the factory, greatly reducing system integration time.
Tight orthogonal alignment simplifies inertial frame alignment
in navigation systems. An improved SPI interface and register
structure provide faster data collection and configuration control.
The ADIS16300, along with a flex interface, drops into current
systems that use the ADIS1635x family, providing the opportunity
to scale cost for systems that only require four degrees of
freedom inertial sensing. This compact module is approximately
23 mm × 31 mm × 7.5 mm and provides a standard connector
interface, which enables horizontal or vertical mounting.
