AD9845BJSTZRL

Overview

The AD9845BJSTZRL is a complete 12-bit, 30 MSPS CCD signal processor designed for interlaced and progressive scan area CCD arrays. It features a single-channel architecture with an input clamp, correlated double sampler (CDS), PxGA, VGA, black level clamp, and ADC. Operating from a single 3 V supply, it dissipates 153 mW at 3 V. The device includes a 3-wire serial interface for register programming and is housed in a 48-lead LQFP package.

Feature Summary

• Integrates a 12-bit A/D converter with a 30 MSPS correlated double sampler for high-speed signal conditioning.
• Includes a programmable Pixel Gain Amplifier (PxGA) with four independent gain values for color steering.
• Features a digitally controlled Variable Gain Amplifier (VGA) with 10-bit resolution for precise gain adjustment.
• Supports auxiliary analog video inputs with dedicated clamping and amplification stages.

Applications

• High Performance Digital Still Cameras
• Industrial/Scientific Imaging

Procurement Notes

Verify the specific suffix 'RL' against official documentation to confirm reel packaging status, as datasheets may list standard tray packaging. Confirm lead-free compliance and RoHS status through current manufacturer declarations. Ensure ESD precautions are observed during handling due to sensitivity.

Selection Notes

Select this component for applications requiring integrated CCD signal processing with single-supply operation. Verify compatibility with target CCD array timing requirements, specifically SHP, SHD, and DATACLK frequencies up to 30 MHz. Ensure system design accommodates the 48-lead LQFP thermal characteristics and serial interface constraints.

Part Context

The AD9845B is an improved version of the AD9845A, offering pin compatibility for design upgrades. It serves as a specialized Analog-to-Digital Converter (ADC) within the data converter ICs category, specifically tailored for CCD signal chains rather than general-purpose data acquisition.

Replacement Considerations

The AD9845A is the direct predecessor and is pin-compatible. Designers upgrading from AD9845A should verify functional improvements and register settings. No other direct substitutes are documented in the provided source material.