DESCRIPTION
The WM8199 is a 16-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 20MSPS.

FEATURES
• 16-bit ADC
• 20MSPS conversion rate
• 30MSPS conversion rate at 8-bits
• Low power – 358mW 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
• 8 or 4-bit wide multiplexed data output formats
• Internally generated voltage references
• 28-lead SSOP package
• Serial control interface

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