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To resolve smaller inputs you need to increase the gain of the structure. You can achieve this by increasing the current (within your power limit), or increasing input pair size.
This may or may not get you to meet your specifications.
If this doesn't get you the desired solution, you can...
Unless a strictly DC analysis is specified all capacitors in the circuit must be taken into consideration. There is no need for an explicit AC source. Also, your plot of Cvar clearly implies that other capacitors are to be considered as well. This is in fact the most common way of using device...
1. The most significant property of a diode connected transistor is that it is always in saturation (Vds = Vgs => Vds > Vgs - Vth).
Now consider the behavior of this device. If the drain potential is higher than the source, it will be in saturation and the current will flow from drain to...
An easier way to think of this is to draw the physical structure of a mosfet and then consider the connections. The total capacitance will be Cgs+Cgd including the oxide capacitance.
In a MOS device, any resistance exists between drain and source whose value depends on the bias (region of...
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