AD9847KSTRL

Overview

The AD9847KSTRL is a 10-bit CCD signal processor with an integrated timing driver, packaged in a 48-lead LQFP. It operates within a temperature range of -20°C to +85°C and supports a maximum clock rate of 40 MHz. The analog front end includes a Correlated Double Sampler (CDS), a Pixel Gain Amplifier (PxGA) with -2 dB to +10 dB gain, and a Variable Gain Amplifier (VGA) providing 2 dB to 36 dB gain. A 10-bit ADC converts the signal at up to 40 MSPS. Power dissipation varies by supply voltage and load, reaching 450 mW at 5 V for H-drivers and 200 mW for other supplies at 3 V.

Feature Summary

• Integrates a complete analog front end with CDS, PxGA, VGA, black level clamp, and 10-bit ADC.
• Features a Precision Timing core allowing high-speed clock adjustment with approximately 500 ps resolution.
• Includes on-chip 5 V horizontal and reset gate drivers capable of directly driving CCD inputs.
• Configurable via a 3-wire serial interface for operation modes and timing parameters.

Applications

• Digital still cameras
• CCD image sensor signal processing

Procurement Notes

Verify the specific suffix KSTRL against official Analog Devices documentation to confirm reel packaging and tape-and-reel specifications. Ensure the component meets RoHS compliance requirements as indicated in standard datasheets. Confirm availability status through authorized distributors, as manufacturing transitions may affect current stock levels.

Selection Notes

Select this component for applications requiring a highly integrated CCD signal processor with precise timing control. Ensure the system design accommodates the required analog and digital supply voltages (AVDD 2.7–3.6 V, DVDD 3.0–5.5 V). Verify that the 48-lead LQFP package fits the PCB layout constraints and that the thermal resistance of 92°C/W is manageable for the expected power dissipation.

Part Context

The AD9847 is part of Analog Devices' CCD signal processor family, designed specifically for digital imaging applications. It combines analog signal conditioning with digital timing generation to simplify system architecture. The device replaces discrete components typically used for CCD drive and signal amplification, offering a compact solution for camera modules.

Replacement Considerations

Check for updated revisions or alternative packages from Analog Devices. No direct public substitute part numbers are confirmed in the provided source material.