AD9945KCPZRL7

完整的12位40 MHz的CCD信号处理器 Complete 12-Bit 40 MHz CCD Signal Processor

Product Details

The AD9945 is a complete analog signal processor for CCD applications. It features a 40 MHz single-channel architecture designed to sample and condition the outputs of interlaced and progressive scan area CCD arrays.

The AD9945’s signal chain consists of a correlated double sampler CDS, a digitally controlled variable gain amplifier VGA, a black level clamp, and a 12-bit A/D converter.

The internal registers are programmed through a 3-wire serial digital interface. Programmable features include gain adjustment, black level adjustment, input clock polarity, and power-down modes. The AD9945 operates from a single 3 V power supply, typically dissipates 140 mW, and is packaged in a space-saving 32-lead LFCSP.

### Features and Benefits

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40 MSPS Correlated Double Sampler CDS

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6 dB to 40 dB 10-Bit Variable Gain Amplifier VGA

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Low Noise Optical Black Clamp Circuit

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Preblanking Function

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12-Bit 40 MSPS A/D Converter

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No Missing Codes Guaranteed

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3-Wire Serial Digital Interface

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3 V Single-Supply Operation

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Low Power: 140 mW @ 3 V Supply

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Space-Saving 32-Lead 

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5 mm x 5 mm LFCSP