GENERAL DESCRIPTION

The AD9943/AD9944 are complete analog signal processors for CCD applications. They feature a 25 MHz single-channel architecture designed to sample and condition the outputs of interlaced and progressive scan area CCD arrays. The signal chain for the AD9943/AD9944 consists of a correlated double sampler (CDS), a digitally controlled variable gain amplifier (VGA), and a black level clamp. The AD9943 offers 10-bit ADC resolution, while the AD9944 contains a true 12-bit ADC.

FEATURES

25 MSPS correlated double sampler (CDS)

6 dB to 40 dB 10-bit variable gain amplifier (VGA)

Low noise optical black clamp circuit

Preblanking function

10-bit (AD9943), 12-bit (AD9944) 25 MSPS A/D converter

No missing codes guaranteed

3-wire serial digital interface

3 V single-supply operation

Space-saving 32-lead 5 mm × 5 mm LFCSP package

APPLICATIONS

Digital still cameras

Digital video camcorders

PC cameras

Portable CCD imaging devices

CCTV cameras

AD9944KCP属于集成电路（IC） > 传感器和检测器接口。亚德诺半导体技术有限公司制造生产的AD9944KCP传感器和检测器接口该系列产品可执行信号调节、数据转换、激励生成和/或各种将传感器或变送器机构连接到主机设备所需的其他功能。示例包括用于 CCD 图像传感器的控制器、用于 4-20 mA 接口和类似应用的电流变送器、超声变送器前端、惠斯通电桥接口等。