My task is to create a MOSFET switch that will provide pulses of at least 30V with rise time 5ns. I would be happy with 20ns i guess, but getting close to 5ns would make me proportionally happier.
Purpose of the switching circuit is to calibrate Tektronix P6015A probe. I can't find and i cannot afford the recommended calibrator, and so i am experimenting in the field of switches, where i am very much a beginner. For this, i need a steep square, the frequency is not that importatnt i guess. In reality the probe is used to measure a radar magnetron with 1/1000 duty cycle.
To drive a MOSFET (not yet chosen) i picked UCC2752 driver chip, because of the appealing 1ns rise time.
Now, this is a dual driver, and i will be driving one FET - is that still a good choice?
Can the input of UCC2752 be driven from a square wave generator i have at hand, which provides 0-10V/80ns rise time pulses?
Shall i feed just one input or connect A and B and drive them together? The same question stands for teh outputs A an B.
I imagine there is a lot of current from the output and so there resistors in series that limit the current - how shall i choose their size?
Would it be beneficial to use push-pull MOSFETS and put the probe between them?
Thank you.