Silicon Designs Model 1010 Digital Accelerometer - Silicon Designs - #1

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SILICON DESIGNS, INC Model 1010 Digital Accelerometer SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE Silicon Designs, Inc. • 1445-NW Mall Street, Issaquah, WA 98027-5344 • Phone: 425-391-8329 • Fax: 425-391-0446 www.silicondesigns.com [page 1] Sept 07 • Capacitive Micromachined • Nitrogen Damped • Hermetically Sealed • Digital Pulse Density Output • Fully Calibrated • Responds to DC & AC Acceleration • -55 to +125 °C Operation • +5 VDC, 2 mA Power (typical) • Non-Standard g Ranges Available • Integrated Sensor & Amplifier • LCC or J-Lead Surface Mount Package • Serialized for Traceability • TTL/CMOS Compatible • No External Reference Voltage • Easy Interface to Microprocessors • Good EMI Resistance • RoHS Compliant Available G-Ranges Full Scale Acceleration 20 pin LCC 20 pin JLCC ± 2 g ± 5 g ± 10 g ± 25 g ± 50 g ±100 g ±200 g * 1010L-002 1010L-005 1010L-010 1010L-025 1010L-050 1010L-100 1010L-200 1010J-002 1010J-005 1010J-010 1010J-025 1010J-050 1010J-100 1010J-200 * Recommended for Down Hole Drilling DESCRIPTION The Model 1010 is a low-cost, integrated accelerometer for use in zero to medium frequency instrumentation applications. Each miniature, hermetically sealed package combines a micro-machined capacitive sense element and a custom integrated circuit that includes a sense amplifier and sigma-delta A/D converter. It is relatively insensitive to temperature changes and gradients. Each device is marked with a serial number on its bottom surface for traceability. An optional calibration test sheet (1010-TST) is also available which lists the measured bias, scale factor, linearity, operating current and frequency response. OPERATION The Model 1010 produces a digital pulse train in which the density of pulses (number of pulses per second) is proportional to applied acceleration. It requires a single +5 volt power supply and a TTL/CMOS level clock of 100kHz-1MHz. The output is ratiometric to the clock frequency and independent of the power supply voltage. Two forms of digital signals are provided for direct interfacing to a microprocessor or counter. The sensitive axis is perpendicular to the bottom of the package, with positive acceleration defined as a force pushing on the bottom of the package. External digital line drivers can be used to drive long cables or when used in an electrically noisy environment. APPLICATIONS • Automotive • Vibration Monitoring • Air Bags • Vibration Analysis • Active Suspension • Machine Control • Adaptive Brakes • Modal Analysis • Security Systems • Robotics • Shipping Recorders • Crash Testing • Appliances • Instrumentation Output Pulse Density NEGATIVE ACCELERATION scale -full F ACCELERATION CLK 0 F /2 scale +full POSITIVE