1. Products
  2. Switches and Multiplexers
  3. Buffered Analog Crosspoint Switches
  4. AD8112


Features and Benefits

  • 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)

Product Details

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.

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

Product Lifecycle icon-recommended Production

At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.

Evaluation Kits (1)

Design Resources

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well.  "Zero defects" for shipped products is always our goal.View our quality and reliability program and certifications for more information.

Part Number Material Declaration Reliability Data Pin/Package Drawing CAD Symbols, Footprints & 3D Models
AD8112JSTZ Material Declaration Reliability Data 100-Lead LQFP (14mm x 14mm)
Wafer Fabrication Data

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Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.