LM9811 - National Semiconductor

LM9811 10-Bit Greyscale/30-Bit Color Linear CCD Sensor Processor

The LM9811 is a high performance integrated signal processor/digitizer for linear CCD image scanners. The LM9811 performs all the analog processing (correlated double sampling for black level and offset compensation, pixel-by-pixel gain (shading) correction, and 10-bit analog-to-digital conversion) necessary to maximize the performance of a wide range of lin.

Features

n 1.5 Million pixels/s conversion rate n Pixel-rate shading correction for individual pixels maximizes dynamic range and resolution, even on “weak” pixels n Implements Correlated Double Sampling for minimum noise and offset error n Reference and signal sampling points digitally controlled in 40ns increments for maximum performance n Generates all necessary CCD clock signals n Compatible with a wide range of linear CCDs n Supports some Contact Image Sensors (CIS) n TTL/CMOS input/output compatible Key Specifications n Resolution: n Pixel Conversion Rate: n Supply Voltage: n Supply Voltage (Dig.