
Tdr
Jana-Marie/Mini-TDR
Software defined TDR based on an STM32G474, MCU+USB interface work and are tested, TDR AFE is untested. Firmware needs to be updated.
Analog Devices
1GHz, 5,500 V/us Low Distortion Amplifier
The AD8009AR is an uncategorised made by Analog Devices in a SOIC8 package with 8 pins. 1GHz, 5,500 V/us Low Distortion Amplifier.
PCBKit's library has its footprint (Package_SO:SOIC-8_3.9x4.9mm_P1.27mm, from KiCad's library), ready for a KiCad board. 2 open-source boards in 2 repositories on GitHub use it.
The library has no symbol for this part yet.

Jana-Marie/Mini-TDR
Software defined TDR based on an STM32G474, MCU+USB interface work and are tested, TDR AFE is untested. Firmware needs to be updated.

Yes. the footprint Package_SO:SOIC-8_3.9x4.9mm_P1.27mm, both drawn on this page. PCBKit places them on a board for you when you design with it.
SOIC8, with 8 pins. Its footprint is drawn on this page.
Parts like it in the library: the LTA8062XS8/R8 by Linearin, the SD8568 by WAVE, the FH9926 by XIN FEI HONG and the LTC8836XS8/R8 by Linearin. Check their datasheets: a part that fits the footprint may still differ in its ratings.
2 boards in 2 repositories on GitHub; the most starred are listed on this page, with their KiCad files.