AD9940BCPZ

Overview

The AD9940BCPZ is a high-speed, correlated double sampler (CDS) with an integrated timing driver designed for CCD imaging systems. It features a 56 MSPS CDS amplifier with 6 dB fixed gain and a Precision Timing core providing 0.37 ns resolution at 56 MHz. The device operates from a single 2.7 V to 3.6 V supply, dissipating 105 mW at 2.7 V without drivers. It includes on-chip horizontal and reset gate timing drivers, internal voltage references, and fully differential outputs for interfacing with image signal processors.

Feature Summary

• 56 MSPS Correlated Double Sampler with 6 dB fixed gain
• Integrated Precision Timing core with 0.37 ns resolution
• On-chip programmable H1-H4 and RG timing drivers
• Single-supply operation (2.7 V to 3.6 V)
• Low power consumption: 105 mW at 2.7 V

Applications

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

Procurement Notes

Verify the BC suffix indicates the -25°C to +85°C industrial temperature range and CPZ denotes the 48-lead LFCSP package. Confirm RoHS compliance status via the manufacturer's current documentation. Check for obsolescence notices or lifecycle changes before finalizing procurement plans.

Selection Notes

Select this component for applications requiring precise CCD timing generation and low-noise signal sampling. Ensure the system clock matches the CLI input frequency for accurate timing resolution. Verify that the load capacitance on H-drivers does not exceed 100 pF per output. Consider thermal resistance of 24°C/W for the LFCSP package during PCB layout.

Part Context

The AD9940BCPZ belongs to the Analog Devices AD9940 family of analog front-end devices. It is specifically packaged in a 48-lead Low Profile Quad Flat Package (LQFP) or Lead Frame Chip Scale Package (LFCSP). The BC suffix specifies the extended temperature range compared to commercial variants.

Replacement Considerations

No direct public substitute part numbers are documented in the provided source material. Designers should evaluate functional compatibility regarding timing resolution, gain accuracy, and interface protocols if considering alternative components.