GENERAL DESCRIPTION:

The ADXRS646 is a high performance angular rate sensor(gyroscope) that offers excellent vibration immunity. Biasstability is a widely-recognized figure of merit for highperformance gyroscopes, but in real-world applications,vibration sensitivity is often a more significant performancelimitation and should be considered in gyroscope selection. TheADXRS646 offers superior vibration immunity and accelerationrejection as well as a low bias drift of 12°/hr (typical), enabling itto offer rate sensing in harsh environments where shock andvibration are present.The ADXRS646 is manufactured using the Analog Devices,Inc., patented high volume BiMOS surface-micromachiningprocess. An advanced, differential, quad sensor design providesthe improved acceleration and vibration rejection. The outputsignal, RATEOUT, is a voltage proportional to angular rateabout the axis normal to the top surface of the package. Themeasurement range is a minimum of ±250°/sec. The output isratiometric with respect to a provided reference supply. Otherexternal capacitors are required for operation.A temperature output is provided for compensation techniques.Two digital self-test inputs electromechanically excite the sensorto test proper operation of both the sensor and the signal conditioning circuits.The ADXRS646 is available in a 7 mm × 7 mm × 3 mm CBGAchip-scale package. 

FEATURES:

12°/hr bias stability

Z-axis (yaw rate) response

0.01°/√sec angle random walk

High vibration rejection over wide frequency

Measurement range extendable to a maximum of ±450°/sec

10,000 g powered shock survivability

Ratiometric to referenced supply

6 V single-supply operation−40°C to +105°C operation

Self-test on digital command

Ultrasmall and light (<0.15 cc, <0.5 gram)

Temperature sensor output

Complete rate gyroscope on a single chip

RoHS compliant

APPLICATIONS:

Industrial applications

Severe mechanical environments

Platform stabilization