AD9945
NOT RECOMMENDED FOR NEW DESIGNSComplete 12-Bit 40 MHz CCD Signal Processor
- Part Models
- 2
- 1ku List Price
- price unavailable
Overview
- 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.
Documentation
Data Sheet 1
Technical Articles 1
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 Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| AD9945KCPZ | 32-Lead LFCSP (5mm x 5mm) | ||
| AD9945KCPZRL7 | 32-Lead LFCSP (5mm x 5mm) |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Jul 5, 2022 - 21_0271 Qualification of an Alternate Adhesive Material and Molding Compound for Select LFCSP Packages |
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| AD9945KCPZ | ||
| AD9945KCPZRL7 | ||
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Oct 18, 2016 - 16_0036 Assembly Relocation to Stats ChipPAC Jiangyin and Test Transfer to Stats ChipPAC Singapore of Select LFCSP Products |
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| AD9945KCPZ | ||
| AD9945KCPZRL7 | ||
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Aug 6, 2014 - 13_0230 Assembly and Test Transfer of Select 3.5x3.5, 4x3, 4x4, and 5x5mm LFCSP Products to STATS ChipPAC China |
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| AD9945KCPZ | ||
| AD9945KCPZRL7 | ||
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Sep 14, 2012 - 12_0226 Conversion of AD9943, AD9944, and AD9945 from Punched to Sawn Leadframe and Transfer of Backend Process to STATSChipPAC Malaysia |
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| AD9945KCPZ | ||
| AD9945KCPZRL7 | ||
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Jan 19, 2011 - 11_0006 AD9945 Datasheet Specification Change |
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| AD9945KCPZ | ||
| AD9945KCPZRL7 | ||
This is the most up-to-date revision of the Data Sheet.