THS7314DR

The THS7314DR from Texas Instruments is a versatile 3-channel SDTV video amplifier designed for applications requiring high-quality video signal processing. It integrates 5th-order Butterworth low-pass filters with an 8.5-MHz cutoff frequency, providing excellent signal conditioning for CVBS, S-Video, Y'P'B'P'R', Y'U'V', or R'G'B' signals.

This amplifier offers a built-in 6dB gain and operates from a wide 3V to 5V single supply. Key electrical characteristics include low differential gain of 0.1% and low differential phase of 0.1°, ensuring signal integrity. The device features rail-to-rail output, allowing output swings within 100mV of the rails, suitable for both AC and DC output coupling. It can drive up to two 75Ω video lines.

The THS7314DR is fabricated using the Silicon-Germanium (SiGe) BiCom-III process, contributing to its low power consumption with a typical quiescent current of 16mA at 3.3V. The device is available in a compact SOIC-8 package, making it suitable for space-constrained designs.

Applications include output video buffering for set-top boxes, PVRs/DVDRs, and low-power video buffering in USB or portable devices. Its versatile input biasing supports DC-coupled or AC-coupled inputs with sync-tip clamping.