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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

BlackBerry Q10 features

the blackberry 10 q10  device features a 720 x 720 Super AMOLED 3.1 inch display, its Q10's screen is slightly larger than its touch hybrid predecessor, the Bold 9930, and sports a greater pixel density of 328ppi.
The screen itself is plenty bright and contrasty with incredible viewing angles.
The steel band around the middle and "glass weave" backplate actually gave the device a pleasantly premium feel in our hands. It was solid, well shaped and smooth to the touch without being plasticky. The 1.5GHz dual-core CPU and 2GB of RAM keep the device humming along quite smoothly. It reacted almost instantaneously to input with no hiccups.
The smaller screen size did make touch input seem a little less natural, but the ability to just start typing and search or perform actions (such as sending an email) more than made up for the slightly cramped confines.

the device also features great  blackberry 10 technologies like :
Peek and Flow into the BlackBerry Hub - A new mobile computing paradigm where what matters to customers is always only one swipe away
Keyboard - Understands and adapts to customers, so they can type faster and more accurately, with a QWERTY keyboard that has rows separated by frets, making it easier to type accurately and with more confidence than ever before
BBMTM (BlackBerry® Messenger) - Allows customers to share things with the people that matter to them in an instant
BlackBerry® BalanceTM technology - Protects what is important to customers and the businesses they work for...
and much more to chase your wits :):) 
once again the blackberry 10 based q10 was able to capture the hearts of not only the blackberry fans but the world wide smartphone users.
so get ready to get your hands on the device in the coming months.

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