The AD9943/AD9944 are complete analog signal processors for CCD applications. They feature a 25 MHz single-channel architecture designed to sample and condition the outputs of interlaced and progressive scan area CCD arrays. The signal chain for the AD9943/AD9944 consists of a correlated double sampler (CDS), 6 dB to 40 dB 10-bit variable gain amplifier (VGA), low noise optical black clamp circuit, preblanking function, 10-bit (AD9943), 12-bit (AD9944) 25 MSPS A/D converter, 3-wire serial digital interface, 3 V single-supply operation, and space-saving 32-lead 5 mm × 5 mm LFCSP package.