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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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LG Optimus LTE2 vs lg optimus 4x hd

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LG Optimus LTE2


LG Optimus LTE2 GSM is a 4.5 inch 8MP Quad-core 1.5GHz Smartphone which features massive amount of ram ie 2GB RAM and runs on Android 4.0 .

some of its core specifications are as follows:

2G Network GSM 850 / 900 / 1800 / 1900
3G Network HSDPA 850 / 1900MHz
Body Dimensions 132.9 x 67.9 x 10.4 mm
Weight 135 g 
Battery Standard battery, Li-Ion 2150 mAh
FEATURES

IT HAS Touch-sensitive controls
Display Type True HD-IPS LCD capacitive touchscreen, 16M colors
Size 720 x 1280 pixels, 4.5 inches, (~326 ppi pixel density) ,Multitouch Yes ,Sound Alert types Vibration,MP3, WAV ringtones ,Loudspeaker Yes ,3.5mm jack Yes ,Memory Card slot microSD, up to 32 GB ,Internal 4 GB storage, 2 GB RAM ,Data GPRS Yes ,EDGE Yes ,Speed HSPA+,HSUPA,LTE WLAN Wi-Fi 802.11 b/g/n, Wi-Fi Direct, DLNA, Wi-Fi hotspot ,Bluetooth Yes, v3.0 with A2DP, EDR ,USB Yes, microUSB v2.0 ,Camera Primary 8 MP, 3264x2448 pixels, autofocus, LED flash ,Features Geo-tagging, face and smile detection ,Video Yes, 1080p,Secondary Yes ,Features OS Android OS, v4.0 (Ice Cream Sandwich) ,Chipset Qualcomm MSM8960 Snapdragon S4,CPU Dual-core 1.5 GHz ,Sensors Accelerometer, gyro, proximity, compass ,Messaging SMS(threaded view), MMS, Email, Push Mail, IM, RSS, Browser HTML, Adobe Flash Radio yes,GPS Yes, with A-GPS support ,Java Yes, via Java MIDP emulator ,Colors Black.

Misc applications

- SNS integration
- TDMB TV tunner
- Active noise cancellation with dedicated mic
- Google Search, Maps, Gmail,
YouTube, Calendar, Google Talk, Picasa integration
- MP4/WMV/H.264/H.263 player
- MP3/WAV/WMA/eAAC+ player
- Document viewer
- Photo viewer/editor
- Organizer
- Voice memo/dial/commands
- Predictive text input (Swype)



LG Optimus 4X HD P880

 


LG Optimus 4X HD P880 IS A Quad-core 1.5 GHz Cortex-A9  8 mp with 1 gb ra and operates on android 4.o .

its specifications are as follows:

2G Network GSM 850 / 900 / 1800 / 1900
3G Network HSDPA 900/2100 / 1900MHz
Body Dimensions 8.9 mm thickness
Battery Standard battery, Li-Ion 2140 mAh

FEATURES

Display     Type     HD-IPS LCD capacitive touchscreen, 16M colors
Size     720 x 1280 pixels, 4.7 inches (~312 ppi pixel density)
Multitouch     Yes
Features     OS     Android OS, v4.0 (Ice Cream Sandwich)
Chipset     Nvidia Tegra 3
CPU     Quad-core 1.5 GHz Cortex-A9
GPU     ULP GeForce
Sensors     Accelerometer, gyro, proximity, compass
Messaging     SMS (threaded view), MMS, Email, Push Email, IM
Browser     HTML5, Adobe Flash
GPS     Yes, with A-GPS support
Java     Yes, via Java MIDP emulator
Colors     Black, WhitE
Sound     Alert types     Vibration, MP3 ringtones
Loudspeaker     Yes
3.5mm jack     Yes
Memory     Card slot     microSD, up to 32GB
Internal     16 GB storage, 1 GB RAM
Data     GPRS     Class 12 (4+1/3+2/2+3/1+4 slots), 32 - 48 kbps
EDGE     Class 12
Speed     HSDPA, 21 Mbps; HSUPA, 5.76 Mbps
WLAN     Wi-Fi 802.11 b/g/n, DLNA, Wi-Fi hotspot
Bluetooth     Yes, with A2DP
USB     Yes, microUSB (MHL) v2.0
Camera     Primary     8 MP, 3264x2448 pixels, autofocus, LED flash
Features     Geo-tagging, face and smile detection, touch focus, image stabilization
Video     Yes, 1080p@30fps
Secondary     Yes, 1.3 MP

Misc applications

- SNS integration
- Active noise cancellation with dedicated mic
- TV-out (via MHL A/V link)
- DivX/Xvid/MP4/H.264/H.263/WMV player
- MP3/WAV/WMA/eAAC+ player
- Document editor
- Organizer
- Google Search, Maps, Gmail
- YouTube, Google Talk
- Voice memo/dial/commands
- Predictive text input

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