Programmable Low Power Gyroscope
ADIS16250/ADIS16255
APPLICATIONS
FEATURES
Yaw rate gyroscope with digital range scaling
80ꢀ°sec, 160ꢀ°sec, and 320ꢀ°sec settings
14-bit digital gyroscope sensor outputs
12-bit digital temperature sensor output
Calibrated sensitivity and bias
Instrumentation control
Platform control and stabilization
Motion control and analysis
Avionics instrumentation
Navigation
ADIS16250: +25ꢀC
Image stabilization
ADIS16255: −40ꢀC to +85ꢀC
Robotics
In-system, auto-zero for bias drift calibration
Digitally controlled sample rate
Digitally controlled frequency response
Dual alarm settings with configurable operation
Embedded integration for short-term angle estimates
Digitally activated self-test
FUNCTIONAL BLOCK DIAGRAM
AUX AUX
ADC
VREF
DAC
ADIS16250/
ADIS16255
TEMPERATURE
SENSOR
GYROSCOPE
SENSOR
CS
SIGNAL
CALIBRATION
Digitally activated low power mode
Interrupt-driven wake-up
RATE
FILT
CONDITIONING
AND
AND
SCLK
DIN
DIGITAL
PROCESSING
SPI
PORT
CONVERSION
SPI®-compatible serial interface
50 Hz sensor bandwidth
DIGITAL
CONTROL
SELF-TEST
DOUT
Auxiliary 12-bit ADC input and 12-bit DAC output
Auxiliary digital input°output
VCC
POWER
MANAGEMENT
AUXILIARY
ALARM
I/O
Single-supply operation: 4.75 V to 5.25 V
2000 g powered shock survivability
COM
RST
DIO0 DIO1
Figure 1.
GENERAL DESCRIPTION
The ADIS16250/ADIS16255 are complete angular rate meas-
urement systems 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/ADIS16255 provide
factory-calibrated and tunable digital sensor data in a convenient
format that can be accessed using a simple SPI serial interface.
The ADIS16255 additionally provides an extended temperature
calibration. 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: ±±0ꢀ/sec, ±160ꢀ/sec, and ±ꢁ20ꢀ/sec. Unique charac-
teristics 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/
ADIS16255 power management features, including an interrupt-
driven wake-up. The ADIS16250/ADIS16255 are available in an
11 mm × 11 mm × 5.5 mm, laminate-based land grid array
(LGA) package with a temperature range of −40ꢀC to +±5ꢀC.
Rev. D
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarks and registeredtrademarks arethe property of their respective owners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
www.analog.com
Fax: 781.461.3113 ©2006–2009 Analog Devices, Inc. All rights reserved.
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