Programmable Low Power Gyroscope

ADIS16250

Rev. 0

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FEATURES

Yaw rate gyro with digital range scaling

±80°/sec, ±160°/sec, and ±320°/sec settings

14-bit digital gyroscope sensor outputs

12-bit digital temperature sensor output

Calibrated sensitivity and bias

Single-command bias calibration

Digitally controlled sample rate

Digitally controlled frequency response

Dual alarm settings with rate/threshold limits

Embedded integration for short-term angle estimates

Digitally activated self-test

Digitally activated low power mode

Interrupt-driven wake-up

SPI®-compatible serial interface

50 Hz sensor bandwidth

Auxiliary 12-bit ADC input and 12-bit DAC output

Auxiliary digital input/output

Single-supply operation: 4.75 V to 5.25 V

2000 g powered shock survivability

APPLICATIONS

Instrumentation control

Platform control and stabilization

Motion control and analysis

Avionics instrumentation

Navigation

Image stabilization

Robotics

FUNCTIONAL BLOCK DIAGRAM

SCLK

DIN

DOUT

CS

RST

DIO0 DIO1

SPI

PORT

TEMPERATURE

SENSOR

SELF-TEST

POWER

MANAGEMENT

AUXILIARY

I/O

ALARM

DIGITAL

CONTROL

SIGNAL

CONDITIONING

AND

CONVERSION

CALIBRATION

AND

DIGITAL

PROCESSING

ADIS16250

VCC

FILT

RATE

COM

AUX

ADC

AUX

DAC VREF

GYROSCOPE

SENSOR

Figure 1.

GENERAL DESCRIPTION

The ADIS16250 is a complete, angular rate measurement

system available in a single compact package enabled by Analog

Devices, Inc., iSensor™ integration. By enhancing Analog

Devices iMEMS® sensor technology with an embedded signal

processing solution, the ADIS16250 provides factory calibrated

and tunable digital sensor data in a convenient format that can

be accessed using a simple SPI serial interface. The SPI interface

provides access to measurements for the gyroscope, 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 device range can be digitally selected from three different

settings: ±80°/sec, ±160°/sec, and ±320°/sec. Unique

characteristics of the end system are accommodated easily

through several built-in features, including a single-command

auto-zero recalibration function, as well as configurable sample

rate and frequency response. Additional features can be used to

further reduce system complexity, including:

•

Configurable alarm function

•

Auxiliary 12-bit ADC and DAC

•

Two configurable digital I/O ports

•

Digital self-test function

System power dissipation can be optimized via the ADIS16250

power management features, including an interrupt-driven wake-up.

The ADIS16250 is available in an 11 mm × 11 mm × 5.5 mm,

laminate-based land grid array (LGA) package with a

temperature range of −40°C to +85°C.