I am just getting started with a simple experimental project that requires a standard Black and White video only analog signal input with a stepped serial output. Need to digitize the video to at least 10 bit resolution and output it as a stepped serial signal. Output being essentially an analog type signal with track and hold steps with the steps in sync with the clock rate. My first idea was to use a simple ADC to DAC circuit. Any ideas as to what Analog Devices I should be looking at and any associated evaluation boards would be appreciated. Any help will be welcome.