GENERAL DESCRIPTION
The AD9940 is a high speed, correlated double sampler for high speed digital imaging applications. Integrated with a programmable timing driver using the Precision Timing core, the AD9940 features a 56 MHz CDS amplifier with 6 dB of fixed gain, an internal voltage reference supply, and timing control for all the high speed clocks necessary for CCD imaging systems. The Precision Timing core allows adjustment of high speed clocks with a resolution of 0.37 ns. Output buffers are also included, providing drive strength for PCB traces and direct connection to an image signal processor such as the AD9941.

FEATURES
   56 MSPS correlated double sampler (CDS) with 6 dB gain
   On-chip horizontal and RG timing driver
   Single-supply operation (2.7 V min)
   Precision Timing™ core with 0.37 ns resolution at 56 MSPS
   Low power CMOS: 105 mW at 2.7 V (115 mW at 3.0 V)
   48-lead LQFP and 48-lead LFCSP packages

APPLICATIONS
   Professional HDTV camcorders
   Professional/high end digital cameras
   Broadcast cameras
   Industrial high speed cameras
   High speed data-acquisition systems