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

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

Samsung ATIV S Windows phone


here comes the  latest Samsung ATIV S Windows phone beast from samsung with windows 8 operating system to give a strong competetion to upcoming lumia edition phones like lumia 900,910,920 .

Samsung's ATIV S Windows phone sports a high-end 4.8-inch display, Corning "Gorilla" glass, and an 8-megapixel rear camera and 1.9-megapixel front-facing camera.



The samsung's ATIV S features a dual-core 1.5GHz processor, a 4.8-inch high-definition Super AMOLED display, 1GB of RAM, microSDHC support, an 8-megapixel camera, and also processes 2,300 mAh battery. awe!! thats enough to just tease an iphone user:):)






The company has declared that the phone  featuring wp8 will hit the market shelves in october. so keep your figures crossed to take hands on it and start saving the money to own this mighty windows 8 beast with its stunning features.


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