ADXRS646 Datasheet | Analog Devices

FEATURES GENERAL DESCRIPTION 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 mand Ultrasmall and light (<0.15 cc, <0.5 gram) Temperature sensor output plete rate gyroscope on a single chip Ro HS pliant APPLICATIONS Industrial applications Severe mechanical environments Platform stabilization The ADXRS646 is a high performance angular rate sensor (gyroscope) that offers excellent vibration immunity. Bias stability is a widely-recognized figure of merit for high performance gyroscopes, but in real-world applications, vibration sensitivity is often a more significant performance limitation and should be considered in gyroscope selection. The ADXRS646 offers superior vibration immunity and acceleration rejection as well as a low bias drift of 12°/hr (typical), enabling it to offer rate sensing in harsh environments where shock and vibration are present. The ADXRS646 is manufactured using the Analog Devices, Inc., patented high volume Bi MOS surface-micromachining process. An advanced, differential, quad sensor design provides the improved acceleration and vibration rejection. The output signal, RATEOUT, 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°/sec. The output is ratiometric with respect to a provided reference supply. Other external capacitors are required for operation. A temperature output is provided for pensation techniques. Two digital self-test inputs electromechanically excite the sensor to test proper operation of both the sensor and the signal conditioning circuits. The ADXRS646 is available in a 7 mm × 7 mm × 3 mm CBGA chip-scale package. FUNCTIONAL BLOCK DIAGRAM 3V TO 6V (ADC...