Features and Benefits

  • Pin Compatible with AD9845A Designs
  • 12-Bit 30 MSPS A/D Converter
  • 30 MSPS Correlated Double Sampler (CDS)
  • 4 dB ± 6 dB 6-Bit Pixel Gain Amplifier (PxGA®)
  • 2 dB to 36 dB 10-Bit Variable Gain Amplifier (VGA)
  • Low Noise Clamp Circuits
  • Preblanking Function
  • Auxiliary Inputs with VGA and Input Clamp
  • 3-Wire Serial Digital Interface
  • 3 V Single-Supply Operation
  • Low Power: 153 mW @ 3 V Supply
  • Space-Saving 48-Lead LQFP Package

Product Details

The AD9845B is a complete analog signal processor for CCD applications. It features a 30 MHz single-channel architecture designed to sample and condition the outputs of interlaced and progressive scan area CCD arrays. The AD9845B's signal chain consists of an input clamp, correlated double sampler (CDS), Pixel Gain Amplifier (PxGA®), digitally controlled variable gain amplifier (VGA), black level clamp, and a 12-bit A/D converter. Additional input modes are provided for processing analog video signals.

The internal registers are programmed through a 3-wire serial digital interface. Programmable features include gain adjustment, black level adjustment, input configuration, and power-down modes.

The AD9845B operates from a single 3 V power supply, typically dissipates 140 mW, and is packaged in a 48-lead LQFP.

Product Lifecycle icon-recommended Last Time Buy

All products in this family will be obsolete soon. Please contact ADI Sales or Distributors to arrange for final purchases and read our Obsolescence Information to review the time periods for placing final orders and receiving final shipments.

Design 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.

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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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