AD8147 Triple Differential Driver for Wideband Video

The AD8146/AD8147/AD8148 are high speed triple, differential or single-ended input to differential output drivers. The AD8146 and AD8147 have a fixed gain of 2, and the AD8148 has a fixed gain of 4. They are all specifically designed for the highest resolution component video signals but can be used for any type of analog signals or high speed data transmission over either Category 5 UTP cable or differential printed circuit board (PCB) transmission lines. QXGA or 1080p video transmission KVM networking Video over unshielded twisted pair (UTP) Differential signal multiplexing

These drivers can be used with the AD8145 triple differential-to-singled-ended receiver, and the AD8117 crosspoint switch to produce a video distribution system capable of supporting UXGA or 1080p signals.

Manufactured on the Analog Devices, Inc. second generation XFCB bipolar process, the drivers have large signal bandwidths of 700 MHz and fast slew rates. They have an internal common-mode feedback feature that provides output amplitude and phase matching that is balanced to −60 dB at 50 MHz, suppressing even-order harmonics and minimizing radiated electromagnetic interference (EMI).

The common-mode voltage of each AD8146 output can be set to any level, allowing transmission of signals over the common-mode voltages. The AD8147 and AD8148 encode the vertical and horizontal sync signals on the common-mode voltages of the outputs. All outputs can be independently set to low voltage states to be used with series diodes for line isolation, allowing easy differential multiplexing over the same twisted pair cable.

The AD8146/AD8147/AD8148 are available in a 24-lead LFCSP and operate over a temperature range of −40°C to +85°C.

Applications

Features and Benefits
  • Triple high speed fully differential driver
    700 MHz, −3 dB, 2 V p-p bandwidth (AD8146/AD8148)
    600 MHz, −3 dB, 2 V p-p bandwidth (AD8147)
    200 MHz, 0.1 dB, 2 V p-p bandwidth
    3000 V/μs slew rate
  • Fixed gain (AD8146/AD8147: G = 2, AD8148: G = 4)
  • Differential or single-ended input to differential output Can be used as differential-to-differential receiver
  • Drives one or two 100 Ω UTP cables
  • Adjustable output common-mode voltage (AD8146)
  • Internal common-mode feedback network
    Output balance error −50 dB @ 50 MHz
  • On-chip, sync-on common-mode encoding (AD8147/AD8148)
  • Output pull-down feature for line isolation
  • Low power: 57 mA @ 5 V for 3 drivers (AD8146)
  • Wide supply voltage range: +5 V to ±5 V
  • Available in a small 4 mm × 4 mm LFCSP
  • Amplifiers
    Audio & Video Products
    Security and Surveillance
    • Video Surveillance
    SPICE Models
    Reference Designs
    Data Sheets
    Documentnote
    AD8146/AD8147/AD8148: Triple Differential Driver for Wideband Video Data Sheet (Rev. B)PDF 574 kB
    User Guides
    Documentnote
    UG-861: Evaluation Board for the AD8147/AD8148 Triple Differential Drivers for Wideband Video (Rev. 0)PDF 961.69 K
    Order Information
    Part NumberPackagePacking QtyTemp RangePrice 100-499Price 1000+RoHS
    AD8147ACPZ-R2 Production24 ld LFCSP (4x5mm w/2.30mm EP)REEL 250-40 to 85C4.094.09Y
    AD8147ACPZ-R7 Production24 ld LFCSP (4x5mm w/2.30mm EP)REEL 1500-40 to 85C03.03Y
    AD8147ACPZ-RL Production24 ld LFCSP (4x5mm w/2.30mm EP)REEL 5000-40 to 85C03.03Y
    Evaluation Boards
    Part NumberDescriptionPriceRoHS
    AD8147-EVALZEvaluation Board for AD8147 and AD8148 24-lead LFCSP143.68Y
    Reference Materials
    AD8146/AD8147/AD8148: Triple Differential Driver for Wideband Video Data Sheet (Rev. B) ad8146
    AD8147 SPICE Macro Model ad8147
    CN0275 设计和集成文件 ad8147
    UG-861: Evaluation Board for the AD8147/AD8148 Triple Differential Drivers for Wideband Video (Rev. 0) ad8147
    CN0275:支持通过UTP传输视频的完整宽带驱动器和接收器解决方案, 针对RGB、YPbPr及其他 ad8147