Rainbow Electronics DAB-IMU-C01 - Manual

Programmable Low Power Gyroscope
ADIS16250/ADIS16255
Rev. B
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FEATURES
Yaw rate gyroscope 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
ADIS16250: +25°C
ADIS16255: −40°C to +85°C
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
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/
ADIS16255
VCC
FILT
RATE
COM
AUX
ADC
AUX
DAC VREF
GYROSCOPE
SENSOR
06
07
0-
0 01
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: ±80°/sec, ±160°/sec, and ±320°/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 −40°C to +85°C.