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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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Samsung Galaxy S3 competitors

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Samsung Galaxy S III vs iPhone 4S, HTC One X, Lumia 900

 

finally the time has come when the samsung revealed its Galaxy S3 which is most anticipated product among the tech seeker now days which is going to be a super smart phone based on android platform.its specs have others competitors from its rival company like nokia who recently launced its windows 7.5 mango based lumia 900 smartphone which to become popular in the smartphone market.also its competion is with htc one x which to share similar tech specs. and ofcource its all time rival iphone 4s which was launced few much back cant be neglected while its comparison.smart phone like sony Xperia S is also its strong rival with much higher 12 mp camera and 16x digital zoom, LED flash.phones like lg optimus 4x hd and motorola droid series is also on its flagship rival list.
So here it is: one table to rule them all, right after the break.



 Galaxy S III
 iPhone 4S
 		HTC One X
          

                    

Lumia 900 


Platform Android 4 with TouchWiz iOS 5 Android 4 with HTC Sense 4 Windows Phone 7.5 Mango
Processor Quad-core 1.4GHz Samsung Exynos Dual-core Apple A5 Dual-core 1.5GHz Qualcomm Snapdragon S4 Single-core 1.4GHz Qualcomm Snapdragon S2
RAM 1GB 512MB 1GB 512MB
Storage 16GB / 32GB / 64GB internal, microSD expandable 16GB / 32GB / 64GB internal 16GB internal 16GB internal
Cellular HSPA+ 21, LTE model expected HSPA+ 14.4, CDMA / EDVO Rev. A LTE and HSPA+ LTE and HSPA+
Display size 4.8 inches 3.5 inches 4.7 inches 4.3 inches
Pixels per inch 306 326 316 217
Display resolution 1280 x 720 960 x 640 1280 x 720 800 x 480
Display technology HD Super AMOLED (PenTile) IPS LCD Super LCD 2 AMOLED (non-PenTile)
Integrated TV-out MHL & DLNA Dock & AirPlay MHL & DLNA DLNA
Primary camera 8-megapixel, unknown aperture 8-megapixel, f/2.4 8-megapixel, f/2.0 8-megapixel, f/2.2
Secondary camera 1.9-megapixel VGA 1.3-megapixel VGA
Video recording 1080p 1080p 1080p 720p
Location / orientation sensors AGPS, compass, accelerometer, gyroscope, barometer AGPS, compass, accelerometer, gyroscope AGPS, compass, accelerometer, gyroscope AGPS, compass, accelerometer, gyroscope
SIM standard SIM micro-SIM micro-SIM micro-SIM
Battery 2,100mAh removable 1420mAh fixed 1800mAh, fixed 1,840mAh, fixed
Weight 133 grams / 4.7 oz. 140 grams / 4.9 oz. to 130 grams / 4.6 oz. 130 grams / 4.6 oz. 159 grams / 5.6 oz.
Dimensions 136.6 x 70.6 x 8.6mm 115.2 x 58.6 x 9.3mm 134.6 x 69.9 x 8.9mm 128 x 69 x 12mm

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