LM98725CCMTX/NOPB

Analog Front End (AFE) Overview

The LM98725CCMTX/NOPB is a three-channel analog front-end (AFE) designed for CCD and CIS signal processing. It integrates a correlated double sampling (CDS) structure with 16-bit resolution and an 81 MSPS sampling rate. The device operates on a 3 V to 3.6 V supply, consuming 755 mW of power. It features SNR performance of 74 dB and outputs data via LVDS or CMOS interfaces. Packaged in a TSSOP-56, it functions within a commercial temperature range of 0°C to +70°C.

Analog Front End (AFE) Feature Summary

• Three-channel AFE with integrated CDS for CCD/CIS applications
• 16-bit resolution at up to 81 MSPS sampling rate
• LVDS/CMOS output interface options
• 74 dB SNR performance

Analog Front End (AFE) Applications

• CCD image sensor signal conditioning
• CIS signal processing
• Industrial imaging systems

Analog Front End (AFE) Procurement Notes

Verify component status as the LM98725 series is marked as obsolete by Texas Instruments. Confirm availability through authorized distributors only, as new production may be discontinued. Check datasheet revisions for any specific handling or storage requirements related to humidity sensitivity.

Analog Front End (AFE) Selection Notes

Select this part for legacy designs requiring three-channel CCD processing with high-speed 16-bit conversion. Note that newer alternatives like the VSP5621 offer four channels and LED drivers but differ in output format and maximum speed. Ensure system timing aligns with the LM98725's internal clocking capabilities.

Analog Front End (AFE) Part Context

The LM98725 belongs to the LM98725 family of CCD/CIS signal processors. It is positioned as an older generation solution compared to modern PMIC-integrated sensors. While it provides dedicated timing generation and CDS, it lacks the integrated power management found in newer multimedia processor subsystems.

Analog Front End (AFE) Replacement Considerations

Texas Instruments recommends against using the LM98725 in new designs. The VSP5621 is cited as a comparative alternative, offering four channels and 50 MSPS per channel with CMOS output. No direct pin-compatible substitutes are documented.