Programmable Dual-Axis
Inclinometer/Accelerometer
ADIS16201
FEATURES
FUNCTIONAL BLOCK DIAGRAM
AUX AUX
Dual-axis inclinometer/accelerometer measurements
12-, 14-bit digital inclination/acceleration sensor outputs
+1.7 g accelerometer measurement range
+90o inclinometer measurement range, linear output
12-bit digital temperature sensor output
Digitally controlled sensitivity and bias calibration
Digitally controlled sample rate
ADC
VREF
DAC
ADIS16201
TEMPERATURE
SENSOR
DUAL-AXIS
ACCELEROMETER
CS
SIGNAL
CALIBRATION
AND
CONDITIONING
AND
DIGITAL
SCLK
DIN
CONVERSION
PROCESSING
SPI
PORT
Digitally controlled frequency response
Dual alarm settings with rate/threshold limits
Auxiliary digital I/O
DIGITAL
CONTROL
DOUT
SELF-TEST
Digitally activated self test
Digitally activated low power mode
VDD
POWER
MANAGEMENT
AUXILIARY
ALARMS
I/O
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
COM
RST
DIO0 DIO1
Figure 1.
APPLICATIONS
Platform control, stabilization, and leveling
Tilt sensing, inclinometers
Motion/position measurement
Monitor/alarm devices (security, medical, safety)
GENERAL DESCRIPTION
The ADIS16201 is a complete, dual-axis acceleration and
inclination angle measurement system available in a single
compact package enabled by the Analog Devices iSensor™
integration. By enhancing the Analog Devices iMEMS® sensor
technology with an embedded signal processing solution, the
ADIS16201 provides factory calibrated and tunable digital
sensor data in a convenient format that can be accessed using a
serial peripheral interface (SPI). The SPI interface provides
access to measurements for dual-axis linear acceleration, dual-
axis linear inclination angle, temperature, power supply, and
one auxiliary analog input. Easy access to calibrated digital
sensor data provides developers with a system-ready device,
reducing development time, cost, and program risk.
The ADIS16201 offers the following embedded features, which
eliminate the need for external circuitry and provide a simplified
system interface:
•
•
•
•
•
Configurable alarm function
Auxiliary 12-bit ADC
Auxiliary 12-bit DAC
Configurable digital I/O port
Digital self-test function
The ADIS16201 offers two power management features for
managing system-level power dissipation: low power mode and
a configurable shutdown feature.
Unique characteristics of the end system are accommodated
easily through several built-in features, such as a single
command in-system offset calibration, along with convenient
sample rate and bandwidth control.
The ADIS16201 is available in a 9.2 mm × 9.2 mm × 3.9 mm
laminate-based land grid array (LGA) package with a
temperature range of −40°C to +125°C.
Rev. A
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rights of third parties that may result from its use. Specifications subject to change without notice. No
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