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AD8112:  Audio/Video, 60 MHz, 16 × 8, Gain of +2 Crosspoint Switch

The AD8112 is a low cost, fully buffered crosspoint switch matrix that operates on ±12 V for audio applications and ±5 V for video applications. It offers a −3 dB signal bandwidth greater than 60 MHz and channel switch times of less than 60 ns with 0.1% settling for use in both analog and digital audio. The AD8112 operated at 20 kHz has a crosstalk performance of −83 dB and isolation of 90 dB. ...More

AD8112:  Audio/Video, 60 MHz, 16 × 8, Gain of +2 Crosspoint Switch

Product Description

The AD8112 is a low cost, fully buffered crosspoint switch matrix that operates on ±12 V for audio applications and ±5 V for video applications. It offers a −3 dB signal bandwidth greater than 60 MHz and channel switch times of less than 60 ns with 0.1% settling for use in both analog and digital audio. The AD8112 operated at 20 kHz has a crosstalk performance of −83 dB and isolation of 90 dB. In addition, ground/power pins surround all inputs and outputs to provide extra shielding for operation in the most demanding audio routing applications. With a differential gain and differential phase better than 0.1% and 0.1°, respectively, and a 0.1 dB flatness output of up to 10 MHz, the AD8112 is suitable for many video applications.

The AD8112 includes eight independent output buffers that can be placed into a disabled state for paralleling crosspoint outputs so that off channel loading is minimized. The AD8112 has a gain of +2. It operates on voltage supplies of ±5 V or ±12 V while consuming only 34 mA or 31 mA of current, respectively. The channel switching is performed via a serial digital control (which can accommodate the daisy chaining of several devices) or via a parallel control, allowing updating of an individual output without reprogramming the entire array.

The AD8112 is packaged in a 100-lead LQFP and is available over the commercial temperature range of 0°C to 70°C.

Applications

  • CCTV surveillance/DVR
  • Analog/digital audio routers
  • Video routers (NTSC, PAL, S-Video, SECAM)
  • Multimedia systems
  • Video conferencing

    • Data Sheet, Rev. 0, 2/07

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    • Low cost, 16 × 8, high speed, nonblocking switch array
      Pin-compatible 16 × 16 version available (AD8113)
    • Serial or parallel programming of switch array
    • Serial data out allows daisy chaining control of multiple
      16 × 8 arrays to create larger switch arrays
    • Output disable allows connection of multiple devices without loading the output bus
    • Complete solution
      Buffered inputs
      8 output amplifiers
      Operates on ±5 V or ±12 V supplies
      Low supply current of 54 mA
    • Excellent audio performance VS = ±12 V
      ±10 V output swing
      0.002% THD at 20 kHz maximum 20 V p-p (RL = 600 Ω)
    • Excellent video performance VS = ±5 V
      0.1 dB gain flatness of 10 MHz
      0.1% differential gain error (RL = 1 kΩ)
      0.1° differential phase error (RL = 1 kΩ)
    • Excellent ac performance
      −3 dB bandwidth 60 MHz
    • Low all-hostile crosstalk of −83 dB at 20 kHz
    • Reset pin allows disabling of all outputs (connected to a capacitor to ground provides power-on reset capability)
    • 100-lead LQFP (14 mm × 14 mm)
    • Type: 16 x 8
    • Output Buffer: Yes G = 2
    • Supply Voltage (V): ±12V
    • Output Swing (V): ±10V
    • Small Signal BW (MHz): 60MHz
    • Slew Rate (V/us): 100
    • Cross Talk @ 10 MHz (-dB): 83 @ 20 kHz
    • Control Interface: Serial/Parallel

    Functional Block Diagram for AD8112

    Similar Products

    arrow View Full Interactive Product Selection Table
    Part# Type Output Buffer Supply Voltage (V) Output Swing (V) Small Signal BW (MHz) Slew Rate (V/us) Cross Talk @ 10 MHz (-dB) Price* (1000-4999)
    AD75019 16 X 16 No ±12 ±11.5 20 - - $16.70
    AD8104 32 x 16 Yes G = 1 ±2.5 ±2 600 1,800 72 $177.10
    AD8105 32 x 16 Yes G = 2 ±2.5 ±2 600 1,800 68 $177.10
    AD8106 16 x 5 Yes G = 1 ±5 ±3 390 500 70 $15.13
    AD8107 16 x 5 Yes G = 2 ±5 ±3 260 500 80 $15.13
    AD8108 8 X 8 Yes G = 1 ±5 ±2.5 350 400 76 $18.72
    AD8109 8 X 8 Yes G = 2 ±5 ±3 250 480 83 $18.72
    AD8110 16 x 8 Yes G = 1 ±5 ±3 390 500 70 $32.89
    AD8111 16 x 8 Yes G = 2 ±5 ±3 260 500 80 $32.89
    AD8112 16 x 8 Yes G = 2 ±12 ±10 60 100 83 @ 20 kHz $10.07
    AD8113 16 X 16 Yes G = 2 ±12 ±10 60 100 83 @ 20 kHz $25.25
    AD8114 16 X 16 Yes G = 1 ±5 ±3 225 375 60 $54.64
    AD8115 16 X 16 Yes G = 2 ±5 ±3 200 450 52 $54.64
    AD8116 16 X 16 Yes G = 1 ±5 ±3 200 300 60 $79.95
    AD8117 32 X 32 Yes G = 1 ±2.5 ±2 600 1,800 65 $298.54
    AD8118 32 X 32 Yes G = 2 ±2.5 ±2 600 1,800 70 $298.54
    AD8175 Triple 16 x 9 Yes G = 2 ±2.5 ±2 500 1,800 82 $96.14
    AD8176 Triple 16 x 9 Yes G = 4 ±2.5 ±2 450 1,650 74 $96.14
    AD8177 Triple 16 x 5 Yes G = 2 ±2.5 ±2 500 1,800 82 $60.21
    AD8178 Triple 16 x 5 Yes G = 4 ±2.5 ±2 450 1,650 74 $60.21
    ADG2108 8 x 10 No ±5 ±3 300 - - $4.97
    ADG2128 8 x 12 No ±5 ±5 300 n/a 79 dB @ 5 MHz $6.25
    ADG2188 8 X 8 No ±5 ±3 300 - - $4.26
    ADV3200 32 X 32 Yes G = 1 ±2.5 ±1.2 300 400 48 dB @ 5 MHz $120.00
    ADV3201 32 X 32 Yes G = 2 ±2.5 ±1.2 300 400 48 dB @ 5 MHz $120.00
    ADV3202 32 x 16 Yes G = 1 ±2.5 ±1.2 300 400 48 dB @ 5 MHz $65.00
    ADV3203 32 x 16 Yes G = 2 ±2.5 ±1.2 300 400 48 dB @ 5 MHz $65.00
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    *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.
    **Sample availability may be better than production availability. Please enter samples into your cart to check sample availability.