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AD9978:  Dual-Channel, 14-Bit CCD Signal Processor with Precision Timing Core

Product Details

The AD9978 is a highly integrated, dual-channel CCD signal processor for high speed digital video camera applications. Each channel is specified at pixel rates of up to 65 MHz and consists of a complete analog front end with ADC conversion. The Precision Timing™ core allows adjustment of the correlated double sampler (CDS) and sample-and-hold amplifier (SHA) clocks with 240 ps resolution at 65 MHz operation. The AD9978 also contains a reduced range, low voltage differential signaling (LVDS) interface for the dual-channel data outputs.

Each analog front end includes black level clamping, a CDS, a VGA, and a 65 MHz, 14-bit ADC. Operation is programmed using a 3-wire serial interface.

Packaged in a space-saving, 6 mm × 6 mm, 40-lead LFCSP, the AD9978 is specified over an operating temperature range of −25°C to +85°C.


  • Digital video cameras
  • Digital still cameras
  • Digital copiers
  • Multifunction printers
  • High speed industrial cameras
  • Data Sheet, Rev. SpB, 9/08


    • Dual AFE channels
    • 1.8 V analog and digital core supply voltage
    • Serial data output with reduced range LVDS outputs
    • Differential analog inputs
    • CDS or SHA configuration (CDS bypass) with −3 dB, 0 dB, +3 dB, and +6 dB gain
    • 6 dB to 42 dB, 10-bit variable gain amplifier (VGA)
    • 14-bit, 65 MHz analog-to-digital converter (ADC)
    • Black level clamp with variable level control
    • Precision Timing core with 240 ps resolution @ 65 MHz

    Functional Block Diagram for AD9978

    For more information about the AD9978, contact the CCD Development Group.

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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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