Determine the loop gain and prove that the feedback is posit

Reference no: EM131279006

An adventurous student replaces the NMOS source follower in Fig. 12.90 with a PMOS common-source stage (Fig. 12.91). Unfortunately, the amplifier does not operate well.

(a) Prove by inspection that the feedback is positive.

(b) Breaking the loop at the gate of M₂, determine the loop gain and prove that the feedback is positive.

Reference no: EM131279006

Questions Cloud

Determine the maximum allowable input : Suppose the input differential signal applied to a bipolar differential pair must not change the transconductance (and hence the bias current) of each transistor by more than 10%. From Eq. (10.58), determine the maximum allowable input.

Obtain an explicit time domain expression for the output : If you were allowed to determine the value of H(s) for only a single value of s, which value of s would you pick in order to obtain an explicit time-domain expression for the output y(t) corresponding to the above input?

Express e in terms of a frequency domain integral : Express E in terms of a frequency-domain integral on the interval |Ω| jΩ) - Y(ejΩ).- write down an explicit formula for the y[n] that minimizes ε, expressing this y[n] as a suitable integral involving W(ejΩ).

How much total work is done on the box : A person is pulling a box across a horizontal floor at a constant speed of 1.8 m/s.The string the person is using to pull the box makes an angle of 28.0° relative to horizontal. The box has a mass of 4.60 kg and the tension in the string is 13.6N...

Determine the loop gain and prove that the feedback is posit : An adventurous student replaces the NMOS source follower in Fig. 12.90 with a PMOS common-source stage (Fig. 12.91). Unfortunately, the amplifier does not operate well.

What is this distance in meters : A sports car moving at constant speed travels 150 m in 4.00 s. If it then brakes and comes to a stop while decelerating at a rate of 6.0 m/s2. How long does it take to stop?

How the operon helps microbe survive and possibly thrive : Describe an operon, the regulatory proteins, the cellular process and the molecules being "sensed". Include details about the orientation of the genes and the promoter/operator sequences or activator binding site. Provide details about the repressor/..

Is given system linear : Is this system linear? Time-invariant?- If x[0] = 1/2, for what values of r is x[n] bounded? - Using an appropriate computational package, compute and plot x[n] for different values of r, including r = k/4, k = 1, 2, ... , 15.

Determine the closed-loop gain and output impedance : The amplifier shown in Fig. 12.90 provides a closed-loop gain close to unity but a very low output impedance. Assuming λ > 0, determine the closed-loop gain and output impedance and compare the results with those of a simple source follower.

User Account

All Pages