Q23: Draw a small-signal equivalent circuit and determine the value of Rp required to obtain a...
please help with 1&2
Problem i. Common-Gate Amplifier: Assume kp = 2 mA/V, VTp = -1 V.=y=0. Determine the following: (5 pt) 1) Vos and VDS (5 pt) 2) The small-signal parameters, go andro (7.5 pt) 3) Draw small-signal equivalent circuit (7.5 pt) 4) Input Resistance, Rin (7.5 pt) 5) Output Resistance, Rout (15 pt) 6) Small-signal Voltage Gain; A, = Yout +15 V -15 V ima 0 1 ko 50 kn Rout (50 pt) Problem 2. Common-Source Amplifier: Assume...
The circuit shown has the following circuit values: Rp = 2 kn, Rs = 1622. RG1 = 20 MO, Rs2 = 10 MQ and Vop = 18 V. The NMOS parameters are Vzn = 0.7 V and k.(W/L) = 0.4 mA/V2. Determine the value of Vos- Ovos = 12.63 v Ovos = 13.03 v Vos = 10.32 V Ovos = 11.77 v
Q6. An amplifier circuit using an n-MOSFET is shown in Fig. Q6. The n-MOSFET has the following parameters: K'-1 mA/V2 and λ-0.02 w. v°' is a small signal AC voltage ource 8V 8V Vout Ra 2.56 mA Fig. Q6 (a) Calculate the DC gate voltage, Va. (b) Assuming that the n-MOSFET is operating in the saturation region and neglecting channel length modulation, calculate the threshold voltage, VrHN, given that the voltage drop across the de current sorce, Inas, has been...
Problem#1 Consider the circuit. The circuit parameters are Vpp = 3.3 V, RD = 8 k1, R, = 240 k12, R2 = 60 k22, and Rs = 2 k12. The transistor parameters are Vrn = 0.4 V, k', = 100 MA/V?, W/L = 80, and 1= 0.02 V!. (a) Determine the quiescent values Ipo and Vpsp. Ans: 0.27 mA; 1.14 V. (b) Find the small-signal parameters g.m and ro. Ans: 2.078 mA/V; 185 62. (e) Determine the small-signal voltage gain...
The circuit
3-The circuit of problem # 2 is subjected to a small ac input by the signal generator. By neglecting the voltage drop across the coupling and bypass capacitors, determine the small signal voltage gain Vo/ Vì = Avi , input resistance Ri-vi / ii and the output resistance Ro external to R Avi= Ri= , Ro The accompanying circuit shows a 4-resistor biased JFET transistor Determine the values of Rp and Rs so that the Q-point is equal...
5) Consider the Cascode amplifier shown below. For the NMOS transistors, kn 0.2 mA/V2, Vr,-0.5 V, (W/L)-(W/L)2-5. VDD-GV and IBIAs= 1.0 mA. a) Assuming λ-0 for all transistors, find the required DC gate- source voltages of M1 and M2 (VGsı and VGs2, respectively) BIAS VD out b) Again assuming 0 M2 for all transistors, what is the minimum DC value of VouT for which the amplifier works in high-gain regime? (W/L)2 in M1 For parts c)-f), Assume -0.01 for all...
7.53 For the circuit shown in Fig. P7.53, draw a complete small-signal equivalent circuit utilizing an appropriate T model for the BJT (use a =0.99). Your circuit should show the values of all components, including the model parameters. What is the input resistance R ? Calculate the overall voltage gain (v,/v). (also find A, for this amp) sig +5 V RC 12 kΩ C2 RL 12 ΚΩ Rsig 75 N ) 0.33 mA Vsig Rin Figure P7.53
Problem 10: Consider the differential stage biased by current mirror and loaded with capacitor. MOSFET parametes: Vr-1 V; VA-; (W/L)*kn-2 mA/V; negligible internal capacitances. 5V 8k 10k 5n Vout 5V Find 1. 2. 3. DC voltage at the output; Low frequency small signal voltage gain Vout/Vin; High frequency 3 dB cutoff.
Problem 10: Consider the differential stage biased by current mirror and loaded with capacitor. MOSFET parametes: Vr-1 V; VA-; (W/L)*kn-2 mA/V; negligible internal capacitances. 5V 8k 10k 5n Vout...
QUESTION 7 Following circuit is the small-signal equivalent circuit of a common-emitter amplifier. Assume Ri 10 kn, RB - 93 KO, RL - 8.5 kn. Small signal parameters are gm = 100 m, 5k and ro - 10 kn. Calculate the voltage gain Avvo/ Re & m} ube gmbe 3 ro " vo
8. Consider the following amplifier using a MOSFET.
a) Draw the DC-only equivalent circuit
b) Draw the AC equivalent circuit for small signal analysis.
+15 V 7.5 k 10 MO 100 kO 10 k sig Vsig 3 kO 5 MQ |w ww