Precision, Miniature MEMs IMU

Data Sheet

ADIS16475

Rev. D

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FEATURES

Triaxial, digital gyroscope

±125°/sec, ±500°/sec, ±2000°/sec range models

2°/hr in-run bias stability (ADIS16475-1)

0.15°/√hr angle random walk (ADIS16475-1 and

ADIS16475-2)

±0.1° axis to axis misalignment error

Triaxial, digital accelerometer, ±8 g

3.6 μg in-run bias stability

Triaxial, delta angle and delta velocity outputs

Factory calibrated sensitivity, bias, and axial alignment

Calibration temperature range: −40°C to +85°C

SPI compatible data communications

Programmable operation and control

Automatic and manual bias correction controls

Data ready indicator for synchronous data acquisition

External sync modes: direct, pulse, scaled, and output

On demand self test of inertial sensors

On demand self test of flash memory

Single-supply operation (VDD): 3.0 V to 3.6 V

2000 g mechanical shock survivability

Operating temperature range: −40°C to +105°C

APPLICATIONS

Navigation, stabilization, and instrumentation

Unmanned and autonomous vehicles

Smart agriculture and construction machinery

Factory/industrial automation, robotics

Virtual/augmented reality

Internet of Moving Things

GENERAL DESCRIPTION

The ADIS16475 is a precision, miniature MEMS inertial measure-

ment unit (IMU) that includes a triaxial gyroscope and a triaxial

accelerometer. Each inertial sensor in the ADIS16475 combines

with signal conditioning that optimizes dynamic performance.

The factory calibration characterizes each sensor for sensitivity,

bias, alignment, linear acceleration (gyroscope bias), and point

of percussion (accelerometer location). As a result, each sensor

has dynamic compensation formulas that provide accurate

sensor measurements over a broad set of conditions.

The ADIS16475 provides a simple, cost effective method for

integrating accurate, multiaxis 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. The serial peripheral interface (SPI) and register

structure provide a simple interface for data collection and

configuration control.

The ADIS16475 is available in a 44-ball, ball grid array (BGA)

package that is approximately 11 mm × 15 mm × 11 mm.

FUNCTIONAL BLOCK DIAGRAM

CONTROLLER

POWER

MANAGEMENT

CS

SCLK

DIN

DOUT

GND

VDD

DR

SYNC

RST

SPI

SELF TEST

I/O

OUTPUT

DATA

REGISTERS

USER

CONTROL

REGISTERS

CALIBRATION

AND

FILTERS

ADIS16475

CLOCK

TRIAXIAL

GYROSCOPE

TEMPERATURE

SENSOR

TRIAXIAL

ACCELEROMETER

Figure 1.