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I'm not sure I understand your question.:|
If you are talking about the power consumption, then just check the current (flow out from the power supply). You have a voltage source connecting between your power and your ground (or gnd), right?
You are saying the ideal case, right?
I have done a dc simulation on this circuit.
When the input voltage is lower than the Vthn the output voltage drops linearly from Vdd.
May I regard this circuit as a gain-controlled amplifier?
Thanks you for replying.
I can understand the effect caused by Cgd. But I can't understand the effect of the charge in channel.
My understanding is that when Vg is lower, the charge in channel will go back to the depletion region.
Can you explain more? thanks.
Hi,
I am confused with the nmos operating method.
The circuit is just a "R + nmos". S and B of nmos are tied to ground, Drain is connected to the Resistor, the other terminal of R is floating. Vg change from H to L at 5ns.
Netlist is like this:
r1 d1 d 100 $[RP]
m1 d g s s nmos L=0.35u W=40u...
How to design a bandgap voltage reference?
The architecture is the figure 11.20 in Razavi’s book
My target: Trying to find the value of W/L of transistors, Resistance to make this circuit generate a zero TC bandgap reference at 27 degree.
Problem: I can’t get the right result.
Global...
nmos cascade
Hello
I see this in a IO circuit. a pfet and a nfet share a S/D diffusion and gate signal.
and this diffusion is not connected out. the other two sides are connected to internal signals, but not power/ground.
They are not inverter, and can not be other gate.
Do you know what's the...
The netlist is from a 2Mb (6T)sram chip.
using hspice, model is BSIM4
ran a simple tran .sp file
The simulation will abort within a few minutes.
the error message is:
**error** the memory request exceeds the current available space.
# memory which has been allocated = 194122 kbytes...
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