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AD9943:  Complete 10-Bit, 25 MHz CCD Signal Processor

Product Details

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 AD9943/AD9944’s signal chain 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.

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 AD9943/AD9944 operate from a single 3 V power supply, typically dissipate 79 mW, and are packaged in a space-saving 32-lead LFCSP.


  • 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, 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 x 5 mm LFCSP Package

Functional Block Diagram for AD9943


Title Content Type File Type
AD9943/AD9944: Complete 10-Bit/12-Bit,, 25 MHz CCD Signal Processor Data Sheet (Rev C, 03/2014) (pdf, 485 kB) Data Sheets PDF
MS-2210: Designing Power Supplies for High Speed ADC  (pdf, 327 kB) Technical Articles PDF
RAQs index Rarely Asked Questions HTML
Glossary of EE Terms Glossary HTML

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Price, packaging, availability

AD9943 Model Options
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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