All Questions
Tagged with nmos saturation
9
questions
1
vote
1
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153
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Mosfet Linear Region LTspice simulation
I have a question regarding a mosfet simulation I am trying to perform.
Here is the circuit in question.
We can see that Vd=1kV , Vs=0V and Vg=10V(it is a pulsed source)
Now to my understanding I ...
- 536
1
vote
2
answers
81
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MOSFET not saturating when Vds > Vgs - Vth
According to Wikipedia, the drain current (\$I_d\$) should stay relatively constant when \$V_{ds} > V_{gs} - V_{th}\$:
(By User:CyrilB - File:IvsV_mosfet.png, CC BY-SA 3.0, https://commons....
- 217
0
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0
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59
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NMOS Circuit analysis where the drain and gate are the same
I was trying to solve the following circuit where I have to calculate I_DS and V_DS in the following circuit.
So the first thing I noticed, since that the gate and drain are connected, is that this ...
- 95
0
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1
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MOSFET goes into saturation mode much later
I am using IRLML6346 NMOS in LTSpice. Its threshold voltage is Vt = 0.95V. I plotted the graph of Vds(voltage between drain and source) vs Ids(Current from drain to source) for different values of Vgs(...
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1
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462
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NMOS/PMOS Saturation
If I recall correctly, saturation occurs if \$V_{GS}>V_{TH}\$ and \$V_{DS}>V_{Dsat}\$ for NMOS. But is there an upper limit for the voltage? Like, when does a transistor not saturate after ...
user203020
2
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2
answers
4k
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How to conclude region of operation for a series combination of MOSFET
I understand that M1 is on and for M2 to be on the intermediate voltage(drain on M1 and source of M2) should be less than 1.5V. Also if M2 is ON then M2 is in saturation since Vds>(Vgs-Vt) for M2. Now ...
- 354
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3
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444
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Why is one transistor in active and the other in triode?
Vtn = 0.4 V, W = 1um, L1=0.25um, L2=0.5um.
For a question I got the circuit above, and the solution said that M1 is in triode and M2 is active. Also, V1 is unknown so I can't figure out how they ...
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-1
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1
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58
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Depletion NMOS that's saturated at 0V
May seem like a weird request for a part, but are there any Depletion NMOS out there that is already saturated when you apply 0V to gate or if the gate is not connected?
- 279
2
votes
1
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417
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NMOS saturation mode: why is there no channel?
I have a question about the saturation mode. The cross-section of an NMOS transistor in saturation mode is usually drawn like this:
But it seems to me that there can be no current from source to ...
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