AD9945: Complete 12-Bit 40 MHz CCD Signal Processor

AD9945 Data Sheet Rev C, 05/2013

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Model	Package	Price* (100-499)	Price* 1000 pcs
AD9945KCPZ Status: Production	32 ld LFCSP (5x5mm CP-32-2)	$6.09	$4.62
AD9945KCPZRL7 Status: Production	32 ld LFCSP (5x5mm CP-32-2)	-	$4.62

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.

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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 x 5 mm LFCSP

Functional Block Diagram for AD9945

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Documentation

Title	Content Type	File Type
AD9945: Complete 12-Bit 40 MHz CCD Signal Processor Data Sheet (Rev C, 05/2013) (PDF, 1840 kB)	Data Sheets	PDF
Design A Clock-Distribution Strategy With Confidence by Demetrios Efstathiou (Electronic Design, April 27, 2006)	Technical Articles	HTML
RAQs index	Rarely Asked Questions	HTML
Glossary of EE Terms	Glossary	HTML

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AD9945 Model Options

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Model	Package	Pins	Temp. Range	Packing, Qty	Price*(100-499)	Price*1000 pcs	RoHS	View PCN/ PDN	Check Inventory/ Purchase/Sample
AD9945KCPZ Status: Production	32 ld LFCSP (5x5mm CP-32-2)	32	Comm.	Tray, 490	$6.09	$4.62	Y Material Info	PCN	Purchase Sample
AD9945KCPZRL7 Status: Production	32 ld LFCSP (5x5mm CP-32-2)	32	Comm.	Reel, 1500	-	$4.62	Y Material Info	PCN	Purchase

Price Table Help

The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.

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AD9945: Complete 12-Bit 40 MHz CCD Signal Processor