AD9945: Complete 12-Bit 40 MHz CCD Signal Processor Data Sheet (Rev. C)12/1/20031840 kB
Features and Benefits
- 40 MSPS Correlated Double Sampler (CDS)
- 6 dB to 40 dB 10-Bit Variable Gain Amplifier (VGA)
- Low Noise Optical Black Clamp Circuit
- Preblanking Function
- 12-Bit 40 MSPS A/D Converter
- No Missing Codes Guaranteed
- 3-Wire Serial Digital Interface
- 3 V Single-Supply Operation
- Low Power: 140 mW @ 3 V Supply
- Space-Saving 32-Lead
- 5 mm × 5 mm LFCSP
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.
Product Lifecycle Not Recommended for New Designs
This designates products ADI does not recommend broadly for new designs.
Documentation & Resources
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal.View our quality and reliability program and certifications for more information.
|Part Number||Material Declaration||Reliability Data||Pin/Package Drawing||CAD Symbols, Footprints & 3D Models|
|AD9945KCPZ||Material Declaration||Reliability Data||32-Lead LFCSP (5mm x 5mm)|
|AD9945KCPZRL7||Material Declaration||Reliability Data||32-Lead LFCSP (5mm x 5mm)|
|Wafer Fabrication Data|
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