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AD8141:  Low Cost, Triple Differential Drivers for Wideband Video

Product Details

Product Status:Recommended for New Designs

The AD8141 and AD8142 are triple, low cost, differential or single-ended-input-to-differential-output drivers. Each amplifier has a fixed gain of 2 to compensate for the attenuation of the line termination resistors. The AD8141 and AD8142 are specifically designed for RGB signals but can be used for any type of signals. The amplifiers have very fast slew rate and settling time while being manufactured on a cost effective CMOS process. They are optimized for high resolution video performance with a 0.1 dB flatness of 65 MHz, which allows driving high resolution video over any type of UTP cable.

The drivers have an internal common-mode feedback loop that provides output amplitude and phase matching, achieving −50 dB balance error at 50 MHz and thereby suppressing even-order harmonics and minimizing radiated electromagnetic interference (EMI).

The AD8142 includes a unique sync-on-common-mode feature that allows the user to transmit balanced horizontal and vertical video sync signals over the three common-mode channels. Additionally, the AD8141 and AD8142 both have a disable feature that, when asserted, produces high-Z outputs, allowing line isolation and easy multiplexing.

The AD8141 and AD8142 are available in a 24-lead 4 mm × 4 mm LFCSP and operate over a temperature range of −40°C to +85°C. They can be used with the AD8145 triple differential-to-single-ended receiver, AD8123 triple equalizer, AD8120 triple delay line, and the AD8117 or AD8175 crosspoint switches to produce a high resolution video distribution system.

APPLICATIONS

  • Keyboard-video-mouse (KVM) networking
  • Video distribution
  • Digital signage
  • Security cameras

FEATURES and BENEFITS

  • Triple, high speed differential drivers
    255 MHz, −3 dB large signal bandwidth
    65 MHz, 0.1 dB flatness
    1150 V/μs slew rate
    12 ns settling time
  • Single 5V or split supply operation
  • Fixed gain of 2
  • Internal common-mode feedback network
    Output balance error −50 dB @ 50 MHz
  • AD8142 has integrated sync-on-common-mode circuitry
  • High-Z output when disabled
  • Differential-to-differential or single-ended-to-differential operation
  • High isolation between amplifiers: 100 dB @ 10 MHz
  • Low power: 44 mA @ 5V
  • Available in space-saving packaging: 4 mm × 4 mm LFCSP

Functional Block Diagram for AD8141

Complete Solutions for Video over UTP Signal Chain

Documentation

Title Content Type File Type
AD8141/AD8142: Low Cost, Triple Differential Driversfor Wideband Video Data Sheet (Rev A, 04/2013) (pdf, 470 kB) Data Sheets PDF
RAQs index Rarely Asked Questions HTML
Glossary of EE Terms Glossary HTML

Evaluation Kits & Symbols & Footprints

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Price, packaging, availability

AD8141 Model Options
Model Package Pins Temp.
Range
Packing,
Qty
Price*(100-499) Price*1000 pcs RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
AD8141ACPZ-R2 Status: Production 24 ld LFCSP 4x4mm (2.5EP) 24 Ind Reel, 250 $2.39 $2.39 Y  Material Info PCN Purchase
AD8141ACPZ-R7 Status: Production 24 ld LFCSP 4x4mm (2.5EP) 24 Ind Reel, 1500 - $1.65 Y  Material Info PCN Purchase Sample
AD8141ACPZ-RL Status: Production 24 ld LFCSP 4x4mm (2.5EP) 24 Ind Reel, 5000 - $1.65 Y  Material Info PCN Purchase
Price Table Help

The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.


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