±150°/sec Yaw Rate Gyroscope
ADXRS613
FEATURES
GENERAL DESCRIPTION
Complete rate gyroscope on a single chip
Z-axis (yaw rate) response
High vibration rejection over wide frequency
2000 g powered shock survivability
Ratiometric to referenced supply
5 V single-supply operation
105°C operation
Self-test on digital command
Ultrasmall and light (<0.15 cc, <0.5 gram)
Temperature sensor output
RoHS compliant
The ADXRS613 is a complete angular rate sensor (gyroscope)
that uses the Analog Devices, Inc. surface-micromachining
process to create a functionally complete and low cost angular
rate sensor integrated with all required electronics on one chip.
The manufacturing technique for this device is the same high
volume BiMOS process used for high reliability automotive
airbag accelerometers.
The output signal, RATEOUT (1B, 2A), is a voltage proportional
to the angular rate about the axis that is normal to the top surface of the package. The output is ratiometric with respect to a
provided reference supply. A single external resistor between
SUMJ and RATEOUT can be used to lower the scale factor. An
external capacitor sets the bandwidth. Other external capacitors
are required for operation.
APPLICATIONS
Inertial measurement units
Platform stabilization
Robotics
A temperature output is provided for compensation techniques.
Two digital self-test inputs electromechanically excite the sensor
to test proper operation of both the sensor and the signal
conditioning circuits. The ADXRS613 is available in a 7 mm ×
7 mm × 3 mm BGA chip scale package.
FUNCTIONAL BLOCK DIAGRAM
+5V
(ADC REF)
+5V
ST2
AVCC
100nF
ST1
TEMP
SELF-TEST
25kΩ
@ 25°C
VRATIO
100nF
ADXRS613
25kΩ
AGND
DEMOD
MECHANICAL
SENSOR
DRIVE
AMP
+5V
AC
AMP
VGA
180kΩ ± 1%
VDD
CHARGE PUMP
AND VOLTAGE
REGULATOR
100nF
PGND
SUMJ
RATEOUT
100nF
22nF
22nF
COUT
06921-001
CP1 CP2 CP3 CP4 CP5
Figure 1.
Rev. A
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