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Show us your square wave

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Wolfgang:

--- Quote from: Keysight DanielBogdanoff on March 06, 2019, 06:48:44 am ---So, not infinite bandwidth but...

how about 3.5 ps edge @ 113 GHz realtime bandwidth?  >:D :popcorn:

--- End quote ---

Ahem. Can we see this with a usable horizontal scale ?

TheSteve:
I can't beat Daniel but am still pleased.

JohnG:
Ok, so it's not the fastest, but it's pretty fast. It's also driving 5V into a 50 ohm load.

Texas Instruments LMG1020 gate driver in BGA package driving 50 ohms, measured with a Tek DPO7354C. Room for improvement on connection to SMA, but not bad. The chip has separate pull-up and pull-down outputs, and the resistors connecting the chip outputs to the transmission line are 1 ohm resistors in 0402 packages.

Cheers,
John

Alfons:
Here is a screenshot of a signal from an ADF4351. I've gotten that part in order to better calibrate the MCP CRT of a 2467B in high frequencies. When programming with the arduino and testing, I was amazed to see that the part has quite fast rise times. Or do I understand something wrong, does the device measure wrong?

Alfons:
I have just converted the TDS744a in a TDS784a, which was done without problems. The bandwidth has doubled. Here is a picture of the same signal as yesterday. You can see how a narrow bandwidth smoothes the signal.

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