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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 EK-GC100 Galaxy Camera

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Samsung EK-GC100 Galaxy Camera:)

Android Jelly Bean:)

massive 4.8-inch display:)

21x zoom:)

WiFi and 4G connectivity:):)

  finally here comes the android camera from the samsung to revolutionarize the the photography world with its latest and powerfull android jelly beans 4.1 operating system on the camera.

The giant electronics maker's existing mirrorless and point-and-shoot camera lineups were the primary topic of discussion recently, but we got a glimse of a Galaxy product possibly to come, from the camera division of samsung. A Galaxy camera ! That could only mean Android, and a heavy heaping of touch and connectivity. such a device is under consideration by the company to revolutionarize the camera world and change the existing camera technology by taking it to a little advance levels.the company officials said that they are  "considering" such a device, but declined to provide any hint as to design or functionality of the upcomming camera.

Nikon with its android camera beats Samsung out the door with its latest Coolpix S800c -- a 16-megapixel snapper camera powered by Android 2.3.3, but this latest version is an entirely different beast to conquer over. The entire back of the camera (Samsung EK-GC100 Galaxy) is occupied by an edge-to-edge 4.8-inch 1,280 x 720-pixel (308 ppi) touch display. There are still a few hardware buttons on board, including a flash release (there's a pop-up strobe in the top right corner), a power button, zoom toggle and shutter release, but you'll spend most of your time interacting with the Galaxy Camera through touch. 
With the Auto mode, you'll have access to a touch-to-focus system while leaving the rest of the computing to the camera. Smart Pro Mode is Samsung's version of intelligent auto, offering ideal settings for 10 different scenarios, such as the Waterfall Trace and Night Trace options, which slow down the shutter speed for daylight and evening shoots, respectively.


Naturally, there are plenty of options for sharing. Android 4.1 Jelly Bean's on board, so you can add any of your favorite imaging apps from Google Play (yes, even Instagram -- a future update will add zoom functionality, too). There are also plenty of native sharing and sorting options, including a device-wide search tool that lets you locate shots based on a face tag, location or time. Best Group Pose will automatically select the ideal portrait of you and your friends, while Share Shot lets you use WiFi Direct to send content to your buds with Galaxy cameras and smartphones in realtime. There's also an Auto Cloud Backup feature, which provides redundancy by sending your photos wirelessly as you shoot -- assuming you're connected to WiFi or a wireless carrier.
Despite the Galaxy's rather large profile, Samsung opted for a standard 1/2.33-inch BSI CMOS sensor, capable of 16-megapixel snaps. Don't expect top-of-the-line image quality, but the 21x, f/2.8-5.9, 23-480mm lens will let you get far closer to the action than any smartphone on the market today. This latest point-and-shoot falls within Samsung's SMART lineup, which means there's surely WiFi on board. There's also 3G and 4G connectivity as well, though, delivered from the carrier of your choice through a micro-SIM that slides in beside the microSD card and 1,650 mAh battery, which Samsung reps say can provide up to seven hours of battery life while connected.


 
We had a chance to shoot with the Galaxy Camera for a few minutes today. The camera we had was clearly an early prototype -- we did experience focusing issues and a colleague's device locked up during the demo -- but considering that it's not set to ship until October, Samsung has a bit of time left to work out the kinks. Otherwise the experience was quite positive; we found the camera to be very responsive and intuitive, especially if you're already familiar with Android. Upon boot-up, you're met with a typical Jelly Bean home screen, with a standard Camera shortcut, located front and center, launching the advanced interface. You can, of course, use the device as a data-only smartphone of sorts as well, surfing the web, responding to email and consuming media just as you would on any other Galaxy.

Without standard phone functionality, the Galaxy Camera won't replace your smartphone -- not to mention that the rather bulky form-factor would end up being quite a nuisance while considering it as smart  -- but if you don't make calls, this could only be a device in your pocket. the image quality seems to be good enough to chase your wits. The device is set to begin shipping in October, and will be sold through camera retailers as well as carrier outlets, though pricing has not yet been released. 
Catch all the details directly from Samsung in the press release comming soonor on the samsung website shortly.

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