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Hi everyone,
I just wanted to ask about something that is not very clear to me.
I think I have understood the basics of the scan chain but I have came up with some simulations of a scan shift cycle, parallel measure cycle and parallel capture cycle: in the first two cases, a strobe signal is...
Uhm, this was just a random pic on my professor's slides. He didn't comment it at all as far as I remember (not a really advanced course) but I was curious. Do you have any reference for what you posted above?
Thanks Lukas, helpful as usual
I have found an explanation directly from the book from where the picture was taken, I will copy it here so it could be useful for someone else:
"This figure can be misleading. It may appear that we can operate the MOSFET in accumulation if we need a good...
Hi everyone,
I wanted to ask you about the graph attached here:
It is from my professor's slides, but I can't find the book from where he took it and I don't think he commented it since I didn't write anything on my copybook.
The question is: I don't really understand the reason why the...
Yes, of course, what I wanted to say is that in your message you told that it appears to be of 30[uV/us] while for me it's about 28 [V/us] and since I tend to recognize that I probably have 0.1% of your experience in analog design, I still can't get how it could be so low: I just made (90% [V] -...
Thank you for your answer erikl, but my SR is now 30 V/us since I have remade the project from the first time I posted it.
-Edit: I saw now that you said 30 uV, but the Y axis is in Volts, so shouldn't it be V/us?
Hi, I have made the simulation for the input step as you told me to, this is the result: the hand calculated SR is very near to that value (considering 10%-90%)
Thank you for your answers, they really come into help. When you say "And also your biasing system is kind of wrong for folded cascode OTA. Its not reliable. For simulation it is ok but in real life you need to design more advanced bc its affected from variations like temperature.", what is the...
Ok, here I am. I connected as you told me to, here is the circuit /w the simulation results. Assuming this one is correct, what would I have to do to correctly calculate slew rate? I mean, should i consider the point when the output reaches the stable value or just evaluate the slope of the ramp...
Hi Ata_sa16,
Thank you for your answer. I have made that connection just as if I was using an OPAMP in voltage follower configuration but as I think I pointed out before, I'm not sure of it. It's the first time doing an analog project so I make lots of mistakes, thanks you for your patience...
I have re-made my project and it works fine (hand calculated specs meet quite accurately simulated specs). Now I'm writing a small relation about my work. Which simulations would be useful to insert? For now, I simulated bias points using DC analysis, frequency and phase diagrams using AC sweep...
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