ADXL50

a FEATURES Complete Acceleration Measurement System on a Single Monolithic IC Full-Scale Measurement Range: ؎ 50 g Self-Test on Digital Command +5 V Single Supply Operation Sensitivity Precalibrated to 19 mV/g Internal Buffer Amplifier for User Adjustable Sensitivity and Zero-g Level Frequency Response: DC to 10 kHz Post Filtering with External Passive Components High Shock Survival: >2000 g Unpowered Other Versions Available: ADXL05 (؎5 g) GENERAL DESCRIPTION Monolithic Accelerometer With Signal Conditioning ADXL50* For convenience, the ADXL50 has an internal buffer amplifier with a full 0.25 V to 4.75 V output range. This may be used to set the zero-g level and change the output sensitivity by using external resistors. External capacitors may be added to the resistor network to provide 1 or 2 poles of filtering. No external active components are required to interface directly to most analog-to-digital converters (ADCs) or microcontrollers. The ADXL50 uses a capacitive measurement method. The analog output voltage is directly proportional to acceleration, and is fully scaled, referenced and temperature compensated, resulting in high accuracy and linearity over a wide temperature range. Internal circuitry implements a forced-balance control loop that improves accuracy by compensating for any mechanical sensor variations. The ADXL50 is powered from a standard +5 V supply and is robust for use in harsh industrial and automotive environments and will survive shocks of more than...