ADI ADXRS649BBGZ-RL

The ADXRS649 is a complete angular rate sensor (gyroscope) that uses the patented high volume BiMOS surface-micromachining process to make a complete gyro on one chip. An advanced, differential, quad sensor design rejects the influence of linear acceleration, enabling the ADXRS649 to offer rate sensing in harsh environments where shock and vibration are present. The output signal, RATEOUT (B1, A2), is a voltage proportional to the angular rate about the axis normal to the top surface of the package. The output is ratiometric with respect to a provided reference supply. An external capacitor is used to set the bandwidth. The measurement range is extendable to ±50,000°/sec by adding an external resistor. Low power consumption (3.5mA) enables very low power consumption, and ultrafast startup (3ms) allows for quick power cycling of the gyro. At 10 samples per second, a pair of CR2032 coin cells can power the ADXRS649 for three months. 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 ADXRS649 is available in a 7mm×7mm×3mm CBGA chip scale package.

• High vibration rejection over wide frequency
• Ultrafast startup: 3 ms
• Measurement range extendable to ±50,000°/sec
• 10,000g powered shock survivability
• Ratiometric to referenced supply
• 5 V single-supply operation
• Z-axis (yaw rate) response
• -40℃ to +105℃ operation
• Self-test on digital command
• Ultrasmall and light (<0.15 cc, <0.5 gram)
• Temperature sensor output
• RoHS compliant

• Sports equipment
• Industrial applications
• Platform stabilization
• High speed tachometry