AD9841AJSTZRL

Overview

The AD9841AJSTZRL is a complete analog signal processor for CCD applications, featuring a single-channel architecture designed to sample and condition outputs of interlaced and progressive scan area CCD arrays. It operates from a single 3 V power supply with typical power consumption of 78 mW. The device includes an input clamp, correlated double sampler (CDS), Pixel Gain Amplifier (PxGA), variable gain amplifier (VGA), black level clamp, and a 10-bit A/D converter. It supports a maximum clock rate of 20 MHz and utilizes a 3-wire serial digital interface for register programming.

Feature Summary

• Integrates a 20 MSPS Correlated Double Sampler (CDS) for noise rejection
• Includes a 6-Bit Pixel Gain Amplifier (PxGA) for color pixel adjustment
• Features a 10-Bit Variable Gain Amplifier (VGA) with programmable gain control
• Provides low noise clamp circuits and analog preblanking functionality

Applications

• Digital Still Cameras
• Digital Video Camcorders

Procurement Notes

Verify the specific ordering suffix against manufacturer documentation to confirm package type and temperature range. Confirm that the reel packaging variant matches the required manufacturing process. Ensure compatibility with existing system voltage levels and timing requirements before finalizing procurement decisions.

Selection Notes

Select this component when a single-channel CCD signal processing solution is required. Compare the AD9841A's 10-bit resolution against the AD9842A's 12-bit option based on system dynamic range needs. Evaluate the 48-lead LQFP package constraints against available board space and thermal management capabilities.

Part Context

This component belongs to the AD9841A/AD9842A family of complete CCD signal processors manufactured by Analog Devices. These devices are engineered specifically for imaging applications requiring high-speed signal conditioning. The AD9841A variant provides 10-bit ADC resolution, distinguishing it from the higher-resolution AD9842A within the same product line.

Replacement Considerations

The AD9842AJSTZRL serves as a direct functional substitute offering 12-bit ADC resolution instead of 10-bit. Verify pinout compatibility and register mapping differences between the two variants during integration.