I need to create a fast swtich driver to switch fro zero to -40 volts - I believe I can use a jfet or mosfet but do not have a lot of experience with them so I am diving into unknown territory a bit.
I am switching a GaN RF device and it draws little to no current -- < 1 mA. I need to command with a TTL singnal which I can probably use some simple gate as a buffer . I need to switch in <100 nS, the faster the better but that is a goal at this point. Any suggestions on devices and a basic circuit to get me started would be highly appreciated --
Thanks in advance
Griz