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AD9823:  Correlated Double Sampler (CDS)

Product Details

The AD9823 is a correlated double sampler for digital camera applications. It features a 40 MHz CDS amplifier with 3.5 dB of fixed gain, an internal voltage reference supply, and timing control for the SHP and SHD sampling clocks. Output buffers are also included, providing drive strength for PCB traces and direct connection to an image signal processor such as the AD9821.

The AD9823 is ideal for applications that need to place the CDS and VGA/ADC circuits on separate PC boards. The “pseudo differential” outputs of the AD9823 provide good signal integrity when interfaced with the differential input AD9821. The AD9823 operates from a single 3 V power supply, typically dissipates 50 mW, and is packaged in a 14-lead TSSOP package.


  • 40 MHz correlated double sampler (CDS)
  • Fixed 3.5 dB CDS gain
  • Low noise optical black clamp circuit
  • 3 V single-supply operation
  • 14-lead TSSOP package

Functional Block Diagram for AD9823


Title Content Type File Type
AD9823: Correlated Double Sampler (CDS) Data Sheet  (Rev 0, 11/2003) (pdf, 401 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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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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