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Complete 14-Bit CCDCIS Signal Processor AD9814KR
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音频和视频产品>照相机和摄像机模拟前端> 14位、6Msps 扫描仪模拟前端

The AD9814 is a complete analog signal processor for CCD
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 14-
bit A/D converter.
The CDS amplifiers may be disabled for use with sensors such
as Contact Image Sensors (CIS) and CMOS active pixel sensors, which do not require CDS.
The 14-bit digital output is multiplexed into an 8-bit output
word that is accessed using two read cycles. The internal registers are programmed through a 3-wire serial interface, and provide adjustment of the gain, offset, and operating mode.
The AD9814 operates from a single +5 V power supply, typically consumes 330 mW of power, and is packaged in a 28-lead
SOIC

FEATURES
14-Bit 10 MSPS A/D Converter
No Missing Codes Guaranteed
3-Channel Operation Up to 10 MSPS
1-Channel Operation Up to 7 MSPS
Correlated Double Sampling
1-6x Programmable Gain
6300 mV Programmable Offset
Input Clamp Circuitry
Internal Voltage Reference
Multiplexed Byte-Wide Output (8+6 Format)
3-Wire Serial Digital Interface
+3/+5 V Digital I/O Compatibility
28-Lead SOIC Package
Low Power CMOS: 330 mW (Typ)
Power-Down Mode: <1 mW
APPLICATIONS
Flatbed Document Scanners
Film Scanners
Digital Color Copiers
Multifunction Peripherals
Complete 14-Bit CCDCIS Signal Processor AD9814KR
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