ADIS16255 Datasheet, PDF (1/20 Pages) Analog Devices – Programmable Low Power Gyroscope with Temperature Compensation

Preliminary Technical Data
Programmable Low Power Gyroscope
with Temperature Compensation
ADIS16255
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
Extended temperature range
In-system, auto-zero for bias drift 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
52 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
GENERAL DESCRIPTION
The ADIS16255 is a complete, angular rate measurement
system available in a single compact package enabled by Analog
Devices iSensor™ integration. By enhancing Analog Devices
iMEMS® sensor technology with an embedded signal processing
solution, the ADIS16255 provides factory calibrated and
tunable digital sensor data in a convenient format that can be
accessed using a simple SPI serial interface. The ADIS16255
provides calibration over an extended temperature range. 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
Rev. PrA
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RATE
FILT
VCC
COM
FUNCTIONAL BLOCK DIAGRAM
AUX AUX
ADC DAC VREF
TEMPERATURE
SENSOR
ADIS16250
GYROSCOPE
SENSOR
SELF-TEST
SIGNAL
CONDITIONING
AND
CONVERSION
CALIBRATION
AND
DIGITAL
PROCESSING
DIGITAL
CONTROL
SPI
PORT
CS
SCLK
DIN
DOUT
POWER
MANAGEMENT
ALARM
AUXILIARY
I/O
RST
Figure 1.
DIO0 DIO1
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 ADIS16255
power management features, including an interrupt-driven
wake-up. The ADIS16255 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.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: [phone]
www.analog.com
Fax: [phone]
©2006 Analog Devices, Inc. All rights reserved.