Catalog
Complete 10-Bit, 40 MHz CCD Signal Processor
Key Features
• 40 MHz Correlated Double Sampler (CDS)
• 0 to 34 dB Variable Gain Amplifier (VGA)
• Pre-Blanking Function
• Low-Noise Clamp Circuits
• 10-Bit 40 MSPS A/D Converter
• No Missing Codes Guaranteed
• Auxiliary Inputs available
• 3-Wire Serial Digital Interface
• +3 V Single Supply Operation
• Power Dissipation: 155 mW
• 48-Lead LQFP Package
Description
AI
The AD9840A is a complete Analog Front-End (AFE) product for high-speed CCD camera applications. It features the circuitry necessary to sample, condition, and digitize the analog output of interlaced and progressive scan area CCDs. The AD9840A performs correlated double sampling (CDS), gain adjustment, black level correction, and analog-to-digital conversion. Additional input modes are provided for processing analog video signals. The internal registers of the AD9840A - used to control gain, offset level, and other functions - are programmed through a 3-Wire serial digital interface.
