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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

apple iphone 5 competitors


here comes the latest iphone 5 the much awaited rivalry beast in the smartphone market from apple.

The Apple iPhone 5 certainly goes a long way in redefining slimness, with a thickness of just 7.6mm. If the svelte nature of a phone truly matters to you, the iPhone 5 stands out from the rest of the flagship smartphone crowd - the next slimmest device is the Galaxy S III, at 8.6mm.


 “iPhone 5 is the most beautiful consumer device that we’ve ever created,” said Philip Schiller, Apple’s senior vice president of Worldwide Marketing. “We’ve packed an amazing amount of innovation and advanced technology into a thin and light, jewel-like device with a stunning 4-inch Retina display, blazing fast A6 chip, ultrafast wireless, even longer battery life; and we think customers are going to love it.” 
 
iPhone 5 is the thinnest smartphone in the world, with an all-new 7.6 mm anodized aluminum body that is 18 percent thinner and 20 percent lighter than iPhone 4S. Designed with an unprecedented level of precision and accuracy & beauty, iPhone 5 combines an anodized aluminum body with diamond cut chamfered edges and glass inlays for a truly incredible fit and finish.



iPhone 5 comes with iOS 6, the world’s most advanced mobile operating system with over 200 new features,also iPhone 5 features dual-band 802.11n Wi-Fi support for a wireless experience up to 150 Mbps.it supports ultrafast wireless standards including LTE and DC-HSDPA.

iphone 5 has always been on the top list ,here the comparison of this beast with its rival smartphone market:):)

So here it is: one table to rule them all, right after the break.


 
Models
Samsung Galaxy S III
HTC One X
LG Optimus 4X HD
Sony Xperia Ion
Nokia Lumia 920
Apple iPhone 5
Thickness
8.6mm
8.9mm
8.9mm
10.8mm
10.7mm
7.6mm
Weight
133gms
130gms
133gms
144gms
185gms
112gms
Display Size
4.8-inch
4.7-inch
4.7-inch
4.55-inch
4.5-inch
4-inch
Display Type
Super AMOLED capacitive touchscreen
Super IPS LCD2 capacitive touchscreen
True HD-IPS LCD capacitive touchscreen
LED-backlit LCD, capacitive touchscreen
IPS LCD PureMotion HD+ capacitive touchscreen
LED-backlit IPS TFT Retina display
Display Resolution
1280x720
1280x720
1280x720
1280x720
1280x768
1136x640
Pixel Density (ppi)
306
312
312
323
332
326
Built-in Storage
16/32/64 GB
32 GB (26 GB user-available)
16 GB storage (12 GB user available)
13.2 GB (12.9 GB user-available memory)
32 GB storage
16/32/64 GB
Expandable Storage
microSD, up to 64 GB
No
microSD, up to 32 GB
microSD, up to 32 GB
No
No
Rear Camera
8MP with an LED flash
8MP with an LED flash
8MP with an LED flash
12MP with an LED flash
8.7MP Carl Zeiss optics with pulse burst LED flash
8MP iSight camera
Video Recording
1080p @ 30fps
1080p @ 24fps
1080p @ 30fps
1080p @ 30fps
1080p @ 30fps
1080p @ 30fps
Front Camera
1.9MP
1.3MP
1.3MP
1.3MP
1.3MP
1.2MP
OS
Android 4.0.4 Ice Cream Sandwich upgreadable to Android 4.1 Jelly Bean
Android 4.0 Ice Cream Sandwich upgradeable to Android 4.1 Jelly Bean
Android 4.0 Ice Cream Sandwich
Android 4.0 Ice Cream Sandwich
Microsoft Windows Phone 8
iOS 6
CPU
1.4 GHz quad-core Cortex-A9
1.5GHz quad-core
1.5GHz quad-core
1.5GHz dual-core
1.5 GHz dual-core Krait
Unknown
GPU
Mali-400MP
ULP GeForce
ULP GeForce
Adreno 220
Adreno 225
Unknown
RAM
1GB
1GB
1GB
1GB
1GB
1GB
Chipset
Exynos 4412 Quad
Nvidia Tegra 3
Nvidia Tegra 3
Qualcomm MSM8260 Snapdragon
Qualcomm MSM8960 Snapdragon
Apple A6
Battery
2100mAh
1800mAh
2150mAh
1900mAh
2000mAh
1850
Unique Features
-S Voice
-Smart Stay (Eye Tracking)
-Direct Dial
-50GB Dropbox storage for 2 years for free
-Pop up Play
-Burst mode for the camera
-32GB Dropbox storage for 2 years for free
-Beats Audio
-QuickMemo (instant note taking app)
-Finger Tip Seek
-Bravia engine display
-xLoud audio
-50 GB Box.net storage for 2 years for free
-Wireless charging
-Floating lens technology
-Touchscreen can be used with gloves
-New Lightning dock connector
-Panaroma shoots
-Airplay
-AirPrint



 for sure this smartphone beauty from apple will definately capture over the hearts of the people which inturn will make the company stand ahead from its rival beasts like samsung,sony etc.
so keep your fingers ready to get the hands on experiance with this great and stunning device when it comes for market release.it will be will available in few days in the US stores and later in rest of the world.

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