AD9945KCPRL7

Overview

The AD9945KCPRL7 is a complete analog signal processor designed for CCD applications, manufactured by Analog Devices Inc. It utilizes a 40 MHz single-channel architecture to sample and condition outputs from interlaced and progressive scan area CCD arrays. The internal signal chain comprises a correlated double sampler (CDS), a digitally controlled variable gain amplifier (VGA), a black level clamp circuit, and a 12-bit analog-to-digital converter (ADC). The device operates on a single 3 V power supply with typical power consumption of 140 mW. Configuration is managed via a three-wire serial digital interface controlling parameters such as gain, black level, input clock polarity, and power-down modes. It is housed in a space-saving 32-pin LFCSP-WQ package.

Feature Summary

• Integrates a full signal processing chain including correlated double sampling, programmable gain amplification, black level clamping, and high-resolution digitization within a single component.
• Features a dedicated three-wire serial digital interface for flexible configuration of operational parameters including gain adjustment, black level correction, and clock polarity settings.
• Designed for compatibility with both interlaced and progressive scan CCD array architectures, supporting standard video signal conditioning requirements.

Applications

• Signal conditioning for interlaced and progressive scan area CCD arrays
• Machine vision systems requiring high-speed CCD data acquisition
• Industrial imaging equipment utilizing CCD sensors

Procurement Notes

Verify the exact part number suffix against official manufacturer documentation, as variations often indicate specific packaging or temperature grades. Confirm current availability status directly with authorized distributors, as lead times and stock levels fluctuate. Ensure compliance with RoHS3 specifications and check moisture sensitivity levels prior to PCB assembly to prevent damage during reflow soldering processes.

Selection Notes

Select this component when designing systems that require integrated analog front-end processing for CCD sensors without external discrete components. Consider the 32-pin LFCSP-WQ package constraints for layout and thermal management. Evaluate the need for the specific 40 MHz bandwidth and 12-bit resolution against system performance requirements before finalizing the design.

Part Context

This component belongs to the AD9945 family of CCD signal processors from Analog Devices Inc. It shares core architectural features with variants like the AD9945KCPZ, differing primarily in packaging and manufacturing lot specifics. The KCPRL7 designation identifies the specific reel-based surface-mount version of this high-performance imaging interface solution.

Replacement Considerations

The AD9945KCPZ is a pin-compatible alternative within the same product family, offering identical functional specifications but potentially differing in packaging format or revision history. Verify register compatibility and electrical characteristics before substitution.