Three-channel video mux with 320 V/µs slew rate
The Texas Instruments THS7303PWR is a three-channel 2:1 multiplexer-amplifier designed for video signal routing and buffering. Each channel combines a 2:1 analog mux with a fixed-gain amplifier, delivering a 320 V/µs slew rate and 190 MHz -3 dB bandwidth—enough margin for 1080p component video or high-speed ADC drive stages.
Package and mounting
190 MHz at -3 dB means the THS7303PWR cleanly passes 1080p (74.25 MHz pixel clock) with negligible amplitude droop. If you're driving a 75 Ω back-terminated line, the 85 mA per-channel output current handles the load without external buffers. The 18.9 mA total supply current for all three channels is reasonable for a multi-channel video mux; you won't cook the board in a tight enclosure.
Supply range and output swing
At 3.3 V the rail-to-rail output gives you about 3.0 V peak-to-peak into a 75 Ω load, which is the standard video level for SDI or composite. At 5 V you get the full 4 V p-p for RGBHV or component video with sync on green. The 20-TSSOP package (4.40 mm wide) fits on a 2-layer board with a ground pour underneath; keep the supply bypass caps within 5 mm of the pins.
Active lifecycle — no LTB worry
For a production BOM that needs a video mux-amp, this is a safe selection—no forced redesign in the next few years.