2. For the following amplifier, assume that all transistors are active and λ is nonzero. Find the gain V。/V, in terms of small-signal parameters. VD CAN1 Q13 3va 212 Q, -Vss 2. For the followin...
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...
PROBLEM 4 (20 pts) IMPORTANT: Assume all transistors are in saturation. a) Find the small-signal DC gain of the amplifier circuit when the small-signal voltage ViN is applied to the gate of M1. Ignore the body effect for M1 and M2. b) Find the small-signal DC gain of the amplifier circuit when the small-signal voltage Vin is applied to the body of M1. In this case, a DC bias voltage (VB) is applied to the gate of M1. Ignore the...
Q #4: (6 marks). For the following circuit, all the transistors are biased in saturation region with identical length and width of 1μm and 6.5μm, respectively. It is g 200μΑν-2, Wal Calculate the small signal parameters gm and ro for Q1. What is the value of voltage gain (Av)? iven that, VDD=5V, Vt= 1V, μ.co,- sor and 'REF-0.5mA. Draw the small signal circuit of the following amplifier. VDD es 02 REP ei Vo
Q #4: (6 marks). For the following...
Please Solve ALL parts.
For the amplifier below, the MOSFET has the following parameters: VIV, k 1) Show (prove) that the transistor operates in the saturation mode 2) Determine the operating point by finding In and VDs 3) Assume infinite values for the coupling capacitors and draw a small signal model for this amplifier ) Find gm and ro 5) Find the voltage gain (vo/vi) Find Ri 7) Find the current gain (ioli) VDD +12V RD- 10k2 Vo Vi lmA...
Look at the circuit below and try not to freak out!). Assume all transistors are in the active mode. You must now decide whether to include or neglect the Early effect (r.) in your model for each transistor - use the rules we established in class (don't just neglect it every time!). & Voc ¢ Voc a VoR Toetan SRE Rino R Fig 2 a) [3 points] Draw a small-signal model for this circuit (this may take a full page...
Q #4: (6 marks). For the following circuit, all the transistors are biased in saturation region with identical length and width of 1μm and 6.5μm, respectively. It is g 200μΑν-2, Wal Calculate the small signal parameters gm and ro for Q1. What is the value of voltage gain (Av)? iven that, VDD=5V, Vt= 1V, μ.co,- sor and 'REF-0.5mA. Draw the small signal circuit of the following amplifier. VDD es 02 REP ei Vo
2. For the amplifiers below, not all the bias details are shown. For the circuit on the left, what is the small signal resistance looking into the a. source of M2 (Ri2)? b. Using part a, Find the voltage gain at the drain of Mi, and the total gain at the output. For the circuit on the right, known as a cascode amplifier, find the voltage gain. c. Express your answers in terms of the transistors gm, and RD. Assume...
Small-Signal Mid- Band Voltage Gain (Range) Transistors Amplifier Confiaurations +2) to (+5 P-JFET Common Gate By referring to a specific transistor datasheet, design a single stage amplifier circuit with the following specifications. Include in your design, (i) the amplifier circuit, (ii) DC & AC equivalent circuits, (ii) DC & AC analysis and (iv) frequency response. State your assumptions, if any.
Small-Signal Mid- Band Voltage Gain (Range) Transistors Amplifier Confiaurations +2) to (+5 P-JFET Common Gate By referring to a specific...
Problem 2 (10 points) In the amplifier shown in Fig. 2(a), assume Fig. 2(b) that I4 is ideal. Do not ignore the ro of the transistors for this problem, but you can assume that Ri is much smaller than any transistor o I1 and I2 ideal current sources. Also, assume in are (a) Find the small signal differential gain out/vdm of the Fig. 2(a) amplifier in terms of the appropriate small-signal parameters. Then express your answer in terms of appropriate...
Question1 Figure 1 represents a shunt-shunt feedback amplifier circuit. The resistors' values and the transistors parameters are also indicated in Figure 1 Voo 8100 Rci 28 KS2 Rci D10 | R.-S㏀ Hint: in DC analysis; gl -11.538mA/V and 0 R0.2k2 822.85mA/V IE 0.3mA Figure- 1) For R, -10 k2, determine the small-signal closed-loop current-gain A, 2) Determine the small-signal open-loop current-gain.4,- 3) From the results of 2) and 3), determine the loop-gain T Kint: If you did not solve a),...