Industry's First Temperature-Compensated RTC with Internal MEMS Resonator Reduces Crystal Mechanical Failure Susceptibility |
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OmniVision's core strengths are its proprietary image sensing and state-of-the-art CMOS process technologies.
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The DS3231M is a low-cost, extremely accurate, I²C real-time clock (RTC). The device incorporates a battery input and maintains accurate timekeeping when main power to the device is interrupted. The integration of the microelectromechanical systems (MEMS) resonator enhances the long-term accuracy of the device and reduces the piece-part count in a manufacturing line. The DS3231M is available in the same footprint as the popular DS3231 RTC.
Read more at ... Maxim
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OmniVision Technologies is a leading developer of advanced digital imaging solutions. Its award-winning CMOS imaging technology enables superior image quality in many of today's consumer and commercial applications, including mobile phones, notebooks, netbooks and webcams, security and surveillance, entertainment, digital still and video cameras, automotive and medical imaging systems.
Read more at ... OVT
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| Precision Navigation and Pointing Gyroscope |
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PicoStrain
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PinPoint® is a tiny, yet powerful new MEMS gyroscope from Silicon Sensing, suitable for applications where navigation and pointing accuracy is essential, but size and power is at a premium.
Key features:
• In-plane & Orthogonal sensing options
• 4.8 x 5.7 x 1.2mm & 0.08 gram (CRM100)
• Analogue & digital SPI® output modes
• 3V / 4mA supply
• Low bias instability (24º/hr) over short integration period (<1s)
• Proven & robust silicon vibrating ring technology
• User configurable measurement range (75 – 900º/s) & bandwidth up to 150Hz (analogue output only)
Read more at ... Pinpoint
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Measuring strain gages is one of the big challenges for sensor technology, especially the weighing industry. Due to the small excitation of the strain gages on a load cell of only 0.2 % (2000 ppm) full scale, and due to the high resolution of 16 Bit and more, the resistors must be measured with a precision deeply in the ppb range. Reasonably, this can only be done measuring the ratio of the resistors.
Here the PICOSTRAIN measuring principle is breaking new grounds compared to A/D converters. The ratio of the resistors is ascribed to a time interval measurement, not to a voltage difference like in Wheatstone bridges. The sensor's resistors together with a capacitor act as low-pass filters. The capacitor, charged to Vcc, is discharged through the sensor's resistors. The discharge time to trigger level (selectable) is precisely measured by a TDC (Time-to-Digital Converter).
Read more at ... Acam
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| APPLICATION
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Load-power monitor improves high-side current measurements
Combining a high-side current-sense amplifier with an analog voltage multiplier, the MAX4211 can easily measure the power dissipated in a load. One multiplier input connects to the load voltage, and the other to an internal analog of the load current—that is, a proportional voltage produced by the internal current-sense amplifier. The multiplier output (VLIL) is then a voltage proportional to load power.
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