The ADXRS624 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 angular rate about the axis 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. 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 ADXRS624 is available in a 7mm × 7mm × 3mm BGA chip scale package.

ADXRS624主要特性:

Complete rate gyroscope on a single chip

Z-axis (yaw rate) response

High vibration rejection over wide frequency

2000g powered shock survivability

Ratiometric to referenced supply

5 V single-supply operation

105℃ operation

Self-test on digital command

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

Temperature sensor output

RoHS compliant

Qualified for automotive applications

ADXRS624应用:

Navigation systems

Inertial measurement units

Platform stabilization

Robotics

图1.ADXRS624方框图

The EVAL-ADXRS624 is a simple evaluation board that allows quick evaluation of the performance of the ADXRS624 ±50°/sec yaw rate gyro. No additional external components are required for operation. The EVAL-ADXRS624 has a 20-lead, dual in-line (0.3 inch width × 0.1 inch pin spacing) interface that allows easy prototyping of products without BGA soldering.

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