ADIS16209_08 Datasheet, PDF (1/16 Pages) Analog Devices – High-Accuracy, Dual-Axis Digital Inclinometer and Accelerometer

High-Accuracy, Dual-Axis
Digital Inclinometer and Accelerometer
ADIS16209
FEATURES
Dual-mode inclinometer system
Dual-axis, horizontal operation, ±90°
Single-axis, vertical operation, ±180°
High accuracy, 0.1°
14-bit digital inclination data, 0.025° resolution
14-bit digital acceleration data, 0.244 mg resolution
±1.7 g accelerometer measurement range
12-bit digital temperature sensor output
Digitally controlled bias calibration
Digitally controlled sample rate
Digitally controlled frequency response
Dual alarm settings with rate/threshold limits
Auxiliary digital I/O
Digitally activated self-test
Digitally activated low power mode
SPI-compatible serial interface
Auxiliary 12-bit ADC input and DAC output
Single-supply operation: 3.0 V to 3.6 V
3500 g powered shock survivability
APPLICATIONS
Platform control, stabilization, and alignment
Tilt sensing, inclinometers, leveling
Motion/position measurement
Monitor/alarm devices (security, medical, safety)
Navigation
GENERAL DESCRIPTION
The ADIS16209 is a high-accuracy, digital inclinometer that
accommodates both single axis (±180°) and dual-axis (±90°)
operation. The standard supply voltage (3.3 V) and serial
peripheral interface (SPI) serial interface enable simple
integration into most industrial system designs. A simple
internal register structure handles all output data and
configuration features. This includes access to the following
output data: calibrated acceleration, accurate incline angles,
power supply, internal temperature, auxiliary analog and digital
input signals, diagnostic error flags, and programmable alarm
conditions.
FUNCTIONAL BLOCK DIAGRAM
AUX AUX
ADC DAC VREF
ADIS16209
TEMPERATURE
SENSOR
DUAL-AXIS
ACCELEROMETER
SELF-TEST
SIGNAL
CONDITIONING
AND
CONVERSION
CALIBRATION
AND
DIGITAL
PROCESSING
DIGITAL
CONTROL
SPI
PORT
CS
SCLK
DIN
DOUT
VDD
GND
POWER
MANAGEMENT
ALARMS
AUXILIARY
I/O
RST
Figure 1.
DIO1 DIO2
Configurable operating parameters include sample rate,
power management, digital filtering, auxiliary analog and
digital output, offset/null adjustment, and self-test for sensor
mechanical structure.
The ADIS16209 is available in a 9.2 mm × 9.2 mm × 3.9 mm
LGA package that operates over a temperature range of −40°C
to +125°C. It can be attached using standard RoHS-compliant
solder reflow processes.
Rev. 0
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