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