Programmable Dual-Axis

Inclinometer/Accelerometer

Data Sheet

ADIS16201

Rev. C

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FEATURES

Dual-axis inclinometer/accelerometer measurements

12-, 14-bit digital inclination/acceleration sensor outputs

±1.7 g accelerometer measurement range

±90° inclinometer measurement range, linear output

12-bit digital temperature sensor output

Digitally controlled sensitivity and 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 leveling

Tilt sensing, inclinometers

Motion/position measurement

Monitor/alarm devices (security, medical, safety)

FUNCTIONAL BLOCK DIAGRAM

SCLK

DIN

DOUT

CS

RST

DIO0 DIO1

SPI

PORT

TEMPERATURE

SENSOR

SELF-TEST

POWER

MANAGEMENT

AUXILIARY

I/O

ALARMS

DIGITAL

CONTROL

SIGNAL

CONDITIONING

AND

CONVERSION

CALIBRATION

AND

DIGITAL

PROCESSING

ADIS16201

VDD

COM

AUX

ADC

AUX

DAC VREF

DUAL-AXIS

ACCELEROMETER

Figure 1.

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.

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 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.

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.