DESCRIPTION
The WM8191 is a 14-bit analogue front end/digitiser IC which processes and digitises the analogue output signals from CCD sensors or Contact Image Sensors (CIS) at pixel sample rates of up to 6MSPS.

FEATURES
• 14-bit ADC
• No missing codes guaranteed
• 6MSPS conversion rate
• Low power – 250mW typical
• 5V single supply or 5V/3.3V dual supply operation
• Single or 3 channel operation
• Correlated double sampling
• Programmable gain (8-bit resolution)
• Programmable offset adjust (8-bit resolution)
• Programmable clamp voltage
• 14-bit parallel or 8/7/4-bit wide multiplexed data output formats
• Internally generated voltage references
• 48-pin TQFP package
• Serial or parallel control interface

APPLICATIONS
• Flatbed and sheetfeed scanners
• USB compatible scanners
• Multi-function peripherals
• High-performance CCD sensor interface