GENERAL 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.

FEATURES
   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)

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