Datasheet ADXRS623 (Analog Devices)

±150°/Sec Yaw Rate Gyroscope ADXRS623 FEATURES GENERAL DESCRIPTION Complete rate gyroscope on a single chip
The ADXRS623 is a complete angular rate sensor (gyroscope)
Z-axis (yaw rate) response
that uses the Analog Devices, Inc., surface-micromachining
High vibration rejection over wide frequency
process to create a functionally complete and low cost angular
2000 g powered shock survivability
rate sensor integrated with all required electronics on one chip.
Ratiometric to referenced supply
The manufacturing technique for this device is the same high
5 V single-supply operation
volume BiMOS process used for high reliability automotive
–40°C to +105°C operation
airbag accelerometers.
Self-test on digital command Ultrasmall and light (<0.15 cc, <0.5 gram)
The output signal, RATEOUT (1B, 2A), is a voltage proportional
Temperature sensor output
to the angular rate about the axis that is normal to the top surface
RoHS compliant
of the package. The output is ratiometric with respect to a pro-
Qualified for automotive applications
vided reference supply. An external capacitor sets the bandwidth.
APPLICATIONS
Other external capacitors are required for operation.
Inertial measurement units
A temperature output is provided for compensation techniques.
Platform stabilization
Two digital self-test inputs electromechanical y excite the sensor to
Robotics
test proper operation of both the sensor and the signal conditioning circuits. The ADXRS623 is available in a 7 mm × 7 mm × 3 mm ceramic bal grid array (CBGA) package.
FUNCTIONAL BLOCK DIAGRAM +5V (ADC REF) 100nF +5V ST2 ST1 TEMP VRATIO AV ADXRS623 CC 100nF SELF-TEST 25kΩ 25kΩ @ 25°C AGND DEMOD DRIVE MECHANICAL AC VGA AMP SENSOR AMP +5V 180kΩ ± 1% VDD CHARGE PUMP AND VOLTAGE 100nF REGULATOR PGND CP1 CP2 CP3 CP4 CP5 SUMJ RATEOUT 100nF
001
22nF 22nF COUT
08890- Figure 1.
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Document Outline Features Applications General Description Functional Block Diagram Revision History Specifications Absolute Maximum Ratings Rate-Sensitive Axis ESD Caution Pin Configuration and Function Descriptions Typical Performance Characteristics Theory of Operation Setting Bandwidth Temperature Output and Calibration Calibrated Performance ADXRS623 and Supply Ratiometricity Null Adjustment Self-Test Function Continuous Self-Test Outline Dimensions Ordering Guide Automotive Products