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High CMRR Instrumentation Amplifier (Schematic and Layout) design for biomedical applications

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Instrumentation amplifiers are intended to be used whenever acquisition of a useful signal is difficult. IA’s must have extremely high input impedances because source impedances may be high and/or unbalanced. bias and offset currents are low and relatively stable so that the source impedance need not be constant. Balanced differential inputs are provided so that the signal source may be referenced to any reasonable level independent of the IA output load reference. Common mode rejection, a measure of input balance, is very high so that noise pickup and ground drops, characteristic of remote sensor applications, are minimized.Care is taken to provide high, well characterized stability of critical parameters under varying conditions, such as changing temperatures and supply voltages. Finally, all components that are critical to the performance of the IA are internal to the device. The precision of an IA is provided at the expense of flexibility. By committing to the one specific task of
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InvenSense® introduces world’s smallest dual-axis gyroscopes for optical image stabilization in smartphone

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InvenSense, Inc. (NYSE: INVN), the leading provider of MotionTracking™ devices, announced the IDG-2030 and IXZ-2030 dual-axis Optical Image Stabilization (OIS) gyroscopes.

OIS eliminates the effects of hand jitter to achieve blur free images and jitter free HD video. The benefits of OIS are most evident in low light conditions where longer exposure times are required. The IDG-2030 expands the dominant position established by the IDG-2021 in the OIS market. At 2.3x2.3x0.65mm, the IDG-2030 sets a new standard for size, profile, and power consumption. The IDG-2030, enabled by InvenSense’s patented technology platform, provides a 41% foot print reduction, 28% lower profile, and 50% lower power than the nearest competitor.

“The first wave of OIS enabled smartphones has already hit the market with image quality rivaling high performance digital cameras,” said Ali Foughi, Vice President of Marketing and Business Development at InvenSense. “As the leader in this market, we are enabling the rapid adoption of OIS in smartphones by providing the world’s lowest profile and lowest power OIS gyroscopes. According to 3rd party estimates, the smartphone market will exceed 1.3 billion units in 2016, with the OIS attach rate reaching 60% to 80%. We are bringing the DSLR experience to smartphone consumers and InvenSense is positioned to achieve significant market share.”