PRODUCT DESCRIPTION

The AD9826 is a complete analog signal processor for imaging applications. It features a 3-channel architecture designed to sample and condition the outputs of trilinear color CCD arrays.

Each channel consists of an input clamp, Correlated Double Sampler (CDS), offset DAC, and Programmable Gain Amplifier (PGA), multiplexed to a high-performance 16-bit A/D converter.

The AD9826 can operate at speeds greater than 15 MSPS with reduced performance. The CDS amplifiers may be disabled for use with sensors that do not require CDS, such as Contact Image Sensors (CIS), CMOS active pixel sensors, and Focal Plane Arrays.

FEATURES

16-Bit 15 MSPS A/D Converter

3-Channel 16-Bit Operation up to 15 MSPS

1-Channel 16-Bit Operation up to 12.5 MSPS

2-Channel Mode for Mono Sensors with Odd/Even Outputs

Correlated Double Sampling

1~6Programmable Gain

300 mV Programmable Offset

Input Clamp Circuitry

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

28-Lead SSOP Package

Low Power CMOS: 400 mW (Typ)

Power-Down Mode Available



APPLICATIONS

Flatbed Document Scanners

Digital Copier

Multifunction Peripherals

Infrared Imaging Applications

Machine Vision