Features: `1.5 Million pixels/s conversion rate` Pixel-rate shading correction for individual pixels maximizes dynamic range and resolution, even on weak pixels`Implements Correlated Double Sampling for minimum noise and offset error`Reference and signal sampling points digitally controlled in 4...
LM9811: Features: `1.5 Million pixels/s conversion rate` Pixel-rate shading correction for individual pixels maximizes dynamic range and resolution, even on weak pixels`Implements Correlated Double Sampli...
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`1.5 Million pixels/s conversion rate
` Pixel-rate shading correction for individual pixels maximizes dynamic range and resolution, even on "weak" pixels
`Implements Correlated Double Sampling for minimum noise and offset error
`Reference and signal sampling points digitally controlled in 40ns increments for maximum performance
`Generates all necessary CCD clock signals
`Compatible with a wide range of linear CCDs
`Supports some Contact Image Sensors (CIS)
`TTL/CMOS input/output compatible
·Color and Greyscale Flatbed and Sheetfed Scanners
·Fax and Multifunction Peripherals
·Digital Copiers
·General Purpose Linear CCD Imaging
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 linear CCD sensors.
The LM9811 can be digitally programmed to work with a wide variety of CCDs from different manufacturers. An internal configuration register sets CCD and sampling timing to maximize performance, simplifying the design and manufacturing processes.
The LM9811 can be used with parallel output color CCDs. A signal inversion mode eases use with CIS sensors. For complementary voltage reference see the LM4041.