Here is the scope data and the schematic: This is what I've measured from the scope:įirst Ring Overshoot voltage: 2.24v (Logical high occurs at 1.5v)įirst Ring undershoot voltage -3.2v (This is why I'm glad the IC isn't damaged) It's another IC and I guess I'm lucky I haven't damaged it with the insane undershoot too.Īlso, note that I had no input attached when making these measurements. The load only draws 2uA and has a capacitance of about 15pF. ![]() I'd also like to go up in frequency to about 1.2 MHz but the issue becomes severe between 250 kHz and 500 kHz. I had the NPN's laying around and at this frequency, level shifters seem to struggle (I gathered this from datasheets). This will be driven from an arduino's 3.3v logic. ![]() I want to eliminate the ringing need a hand. Currently, I'm getting a significant amount of ringing in my circuit on the output side. I need some help with a circuit I'm trying to run at 1/2 MHz.
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