TLC8144-12CPT

Overview

The TLC8144-12CPT is a specialized analog integrated circuit designed for CCD image sensor interfaces. It digitizes and compensates outputs from color and grayscale sensors, supporting correlated double sampling (CDS) or sample-and-hold modes. The device features a single-ended analog signal path with three independent programmable gain amplifiers (PGAs). It supports up to 30 bits of color data and provides pixel-by-pixel compensation or pixel response non-uniformity (PRNU) correction using externally stored calibration data. The component operates in a 48-pin TQFP package.

Feature Summary

• Single-ended analog signal path with three independent PGAs
• Supports up to 30 bits of color data processing
• Enables pixel-by-pixel compensation and PRNU correction via external calibration
• Compatible with CCD imagers, CIS, and scanner applications

Applications

• CCD imagers
• Contact image sensors (CIS)
• Hand-held scanners
• Flatbed scanners

Procurement Notes

Verify the specific suffix 'CPT' against the manufacturer's official documentation to confirm pinout compatibility and temperature range specifications. Ensure that the required 48-pin TQFP footprint matches the target PCB design. Confirm RoHS compliance status as indicated in the latest datasheet revision before procurement.

Selection Notes

Select the TLC8144 when a single-ended input interface is sufficient, as opposed to the fully differential TLC8044. This model is appropriate for designs requiring up to 30 bits of color depth and external PRNU correction capabilities. Verify that the system can accommodate the 400-mW power dissipation characteristics during thermal analysis.

Part Context

This component belongs to the Texas Instruments A/D CCD interface family, which also includes the TLC8044. While the TLC8044 offers a fully differential path and programmable output word lengths (8, 10, 12, or 16 bits), the TLC8144 utilizes a single-ended architecture with fixed 10-bit output data capability for specific sensor integration needs.

Replacement Considerations

The TLC8044 serves as a functional alternative within the same family but requires a different interface topology due to its fully differential analog signal path and 64-pin mini-PQFP packaging.