The BiCMOS circuit in Figure P11.57 is equivalent to a pnp bipolar transistor with an infinite input impedance. The bias current is Iq=900uA. The transistor parameters are :Kp=1ma/V^2, Vtp=-1V, and lambda=0 for M1; and Beta=100, Vbe(on)=.7, and Va=infinity for Q2. [a] Sketch the small-signal equivalent circuit (mine didn't work out, two dependant currents pointed to each other..), [b] Determine the small-signal parameters for each transistor, and [c] Determine the small-signal voltage gain AV=Vo/Vi.

My currents don't work out, so my ss values are too suspect. Please work this out and tell me how you did it.

Thank you.

The practice problem didn't specify which small signal values. However, The values I got from working another bcmos problem were Gm,Vpi,ro,Rpi, gcm, and composite transcondutance.

I guess I'm looking for the small signal voltage gain and the small signal equivalent circuit. The book is obscure.

Need help understanding the voltage questions attached. A step-by-step explanation would be helpful. Please see attachment for figures.
FIGURE 1 shows two amplifier circuits, each of which has one or two unknown voltages (shown highlighted). Select, from TABLE A, the most appropriate value for the unknown voltages for each circ

(i) The minimum recommended supply voltages for the 741 op-amp are V+=5V and V-=-5V. Using these lower supply voltages, calculate (a) Iref, Ic10, Ic6, Ic17, Ic13a, and (b) the voltage gains of the input and gain stages for the circuit values in the attached image.
See attached file for full problem description.

Please refer to the attachment for the figures mentioned in these questions.
1. When a pulse is applied to an op-amp, the output goes from -40 V to +5 V in 0.6 microseconds. What is the slew rate?
2. A certain diff-amp (differential amplifier) has a differential voltage gain of 1500 and a common-mode gain of 0.5. Determine

6. A real op amp is modeled by an ideal op amp, input bias current sources and an input offset voltage source.
Given V10 = 10 mV, Ib1 = Ib2=Ib= 100 nA and R= 100 kilo-ohms
a. Derive an expression for Vout as a function of V1 and V2.
b. What is the value of the output voltage, Vout if both V1 and V2 are set to zero.
See a

Hi, I know you do not do homework assignments but I am studying for a test tomorrow and these are practice tests w/ no answers and so I really need to learn how to do them. Could you please help me understand and SOLVE the entire problem (again, this is not a homework problem, just practice.)?

For the following circuit (see attachment), how do I find the Laplace transform of the transfer function V0(s)/V1(s)? Would this be considered a low or high pass filter?

Consider the following Diff Eq: (x^2)(y'') + x(y') - 9y = 0.
a) Solve the equation by seeking change of variables of the form x = e^x.
b) Show that the DE with non-constant coefficients above becomes a Linear Ordinary Diff Eq with constant coefficents.
c) Determine y by solving that Linear Ordinary Diff Eq.
d) Find t