GENERAL DESCRIPTION
The AD80066 is a complete analog signal processor for imaging applications. It features a 4-channel architecture designed to sample and condition the outputs of linear charged coupled device (CCD) or contact image sensor (CIS) arrays. Each channel consists of an input clamp, correlated double sampler (CDS), offset digital-to-analog converter (DAC), and programmable gain amplifier (PGA), multiplexed to a high performance 16-bit ADC. For maximum flexibility, the AD80066 can be configured as a 4-channel, 3-channel, 2-channel, or 1-channel device.

FEATURES
   16-bit, 24 MSPS analog-to-digital converter (ADC)
   4-channel operation up to 24 MHz (6 MHz/channel)
   3-channel operation up to 24 MHz (8 MHz/channel)
   Selectable input range: 3 V or 1.5 V peak-to-peak
   Input clamp circuitry
   Correlated double sampling
   1×~6× programmable gain
   ±300 mV programmable offset
   Internal voltage reference
   Multiplexed byte-wide output
   Optional single-byte output mode
   3-wire serial digital interface
   3 V/5 V digital I/O compatibility
   Power dissipation: 490 mW at 24 MHz operation
   Reduced power mode and sleep mode available
   28-lead SSOP package

APPLICATIONS
   Flatbed document scanners
   Film scanners
   Digital color copiers
   Multifunction peripherals