Vibration Rejecting ±250°/s Yaw Rate Gyroscope

The ADXRS642 is a complete angular rate sensor (gyroscope) that uses the Analog Devices, Inc., surface-micromachining process to make a functionally complete and low cost angular rate sensor integrated with all of the required electronics on one chip. The manufacturing technique for this device is a patented high volume BiMOS process with years of proven field reliability.

The ADXRS642 is an industrial grade gyroscope that is 100% pin, package, temperature, and function compatible with the ADXRS622 and ADXRS652, while offering enhanced vibration rejection.

The output signal, RATEOUT (1B, 2A), is a voltage proportional to angular rate about the axis normal to the top surface of the package. The measurement range is a minimum of ±250°/s. The output is ratiometric with respect to a provided reference supply. Other external capacitors are required for operation.

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 ADXRS642 is available in a 7 mm × 7 mm × 3 mm BGA chip-scale package.

APPLICATIONS

* Industrial applications

* Inertial Measurement Units

* Severe Mechanical Environments

* Platform stabilization

* Complete rate gyroscope on a single chip

* Z-axis (yaw rate) response

* 20°/hour bias stability

* 0.02°/√second angle random walk

* High vibration rejection over a wide frequency

* 10,000 g powered shock survivability

* Ratiometric to referenced supply