AD9940BSTZRL

Overview

The AD9940BSTZRL is a high-speed correlated double sampler (CDS) with an integrated timing driver, manufactured by Analog Devices Inc. It features a 56 MSPS CDS amplifier with 6 dB fixed gain and a Precision Timing core providing 0.37 ns resolution at 56 MSPS. The device operates from a single 2.7 V to 3.6 V supply, dissipating 105 mW at 2.7 V without H/RG drivers. It includes on-chip horizontal and reset gate timing drivers, an internal voltage reference, and fully differential outputs for direct connection to image signal processors like the AD9941. Packaged in a 48-lead LQFP.

Feature Summary

• 56 MSPS Correlated Double Sampler with 6 dB fixed gain
• Integrated Precision Timing core with 0.37 ns resolution
• On-chip programmable Horizontal and RG timing drivers
• Single-supply operation (2.7 V to 3.6 V)

Applications

• Professional HDTV camcorders
• Professional/high-end digital cameras
• Broadcast cameras
• Industrial high-speed cameras
• High-speed data-acquisition systems

Procurement Notes

Verify component authenticity through authorized Analog Devices distributors or certified suppliers. Check for moisture sensitivity level (MSL 3) requirements during storage and handling. Confirm package integrity for the 48-LQFP form factor. Ensure power supply decoupling capacitors are placed close to pins as specified in the datasheet to maintain low noise performance.

Selection Notes

Select this component for CCD imaging systems requiring precise timing control and high-speed signal sampling. Ensure the system clock (CLI) matches the CCD pixel clock frequency. Verify that the load capacitance for H-drivers does not exceed 100 pF per output. Consider the 105 mW power dissipation when designing thermal management for the 48-lead LQFP package.

Part Context

The AD9940BSTZRL belongs to the AD9940 series of analog front-end ICs designed for high-speed digital imaging. It integrates the CDS and timing generation functions typically found in separate components, simplifying PCB layout for professional camera applications. The 'BSTZRL' suffix indicates the specific package type (LQFP), temperature range, and reel packaging configuration.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Designers should consult Analog Devices for current alternative recommendations if the AD9940BSTZRL is discontinued or unavailable.