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AD8143 Datasheet(PDF) 1 Page - Analog Devices |
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AD8143 Datasheet(HTML) 1 Page - Analog Devices |
1 / 24 page ![]() High Speed, Triple Differential Receiver with Comparators AD8143 Rev. 0 Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibilityis assumedbyAnalogDevicesforitsuse,norforanyinfringements of patents or other rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781.329.4700 www.analog.com Fax: 781.461.3113 © 2005 Analog Devices, Inc. All rights reserved. FEATURES High speed 160 MHz large signal bandwidth 1000 V/μs slew rate @ G = 1, VO = 2 V p-p High CMRR: 65 dB @ 10 MHz High differential input impedance: 5 MΩ Input common-mode range: ±10.5 V (±12 V supplies) User-adjustable gain Wide power supply range: +5 V to ±12 V Fast settling: 8 ns to 1% Disable feature Low offset: ±3.4 mV on 5 V supply 2 on-chip comparators Small packaging: 32-lead, 5 mm × 5 mm LFCSP APPLICATIONS RGB video receivers KVM (keyboard-video-mouse) UTP (unshielded twisted pair) receivers PIN CONFIGURATION REF_G GND IN+_G FB_G REF_R IN–_G GND FB_R OUT_B GND OUT_R OUT_G COMPB_IN+ VS+ GND COMPB_IN– AD8143 A B 32 31 30 29 28 27 26 25 9 10 11121314 1516 24 23 22 21 20 19 18 17 1 2 3 4 5 6 7 8 Figure 1. GENERAL DESCRIPTION The AD8143 is a triple, low cost, differential-to- single-ended receiver specifically designed for receiving red-green-blue (RGB) signals over twisted pair cable. It can also be used for receiving any type of analog signal or high speed data transmission. Two auxiliary comparators are provided to receive digital or sync signals. The AD8143 can be used in conjunction with the AD8133 and AD8134 triple, differential drivers to provide a complete low cost solution for RGB over Category-5 UTP cable applications, including KVM. The excellent common-mode rejection (65 dB @ 10 MHz) of the AD8143 allows for the use of low cost unshielded twisted pair cables in noisy environments. The AD8143 has a wide power supply range from single +5 V supply to ±12 V, which allows for a wide common-mode range. The wide common-mode input range of the AD8143 maintains signal integrity in systems where the ground potential is a few volts different between the drive and receive ends without the use of isolation transformers. The AD8143 is stable at a gain of 1. Closed-loop gain is easily set using external resistors. The AD8143 is available in a 5 mm × 5 mm, 32-lead LFCSP and is rated to work over the extended industrial temperature range of −40°C to +85°C. |
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