Consider the de transfer characteristics shown in Figure 11.5 . Determine the value of the differential-mode input voltage that results in (a)
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Microelectronics: Circuit Analysis and Design
- (a) What are the Q-points for the transistors in the amplifier as shown if VDD = 9 V, VSS = 9 V, ISS = 40 μA, RSS = 1.25 MΩ, and RD = 300 kΩ? Assume Kp = 200 μA/V2, γ = 0.6 V0.5, 2φF = 0.6 V, and VTO = −1 V. (b) What are the differential-mode gain, common-mode gain, CMRR, and differential-mode and common-mode input resistances?arrow_forwardFor the differential amplifier circuit below, all transistors are identical ( ?≠0 ) a) Draw the single-sided differential mode equivalent circuit, showing all details and labels Explain how you obtained this equivalent circuitarrow_forwardThe given circuit is a 2N4403 PNP common collector amplifier. Let VCC=12V, VEE=-12V, R1=52.5kΩ, R2=33kΩ, and RE=2.5kΩ. Determine IB, IC, IE, VB, VC, and VE. Start by initially assuming |VBE| =0.7V or and assuming a value of beta (β). Where to look for the value of β? (Hint: It’s in the transistor model assigned). Determine the input voltage (may extend from the supply voltage range) where the BJT goes from “cut-off to active” and where it goes from “active to saturation”. Assume VCE=0.3V (edge of saturation), RL=500Ω, and C1, C2→∞.arrow_forward
- Given the differential amplifier circuit below. Determine the following: emitter current, differential mode voltage gain, common mode voltage gain and CMRR.arrow_forward(a) What are the Q-points for the transistors in the amplifier as shown if VCC = 12 V, VEE = 12 V, REE = 270 kΩ, RC = 330 kΩ, and βF = 100? (b) What are the differential-mode gain, and differential-mode input and output resistances? (c) What are the common-mode gain, CMRR, and common-mode input resistance for a single-ended output?arrow_forwardConsider the amplifier in the figure given below, where VA = 50 V, VCC = 20 V, VEE = 20 V, IEE = 350 μA, βF = 120, REE = 320 kΩ, and RC = 72 kΩ. What are the differential-mode input and output resistances of the given amplifier?arrow_forward
- Consider the circuit shown in Figure 11.10 on page 567. The transistor characteristics are shown in Figure 11.11. Suppose that VGG is changed to 0 V. Determine the values of VDSQ, VDSmin and VDSmax. Find the gain of the amplifier.arrow_forwardQ.4/ Refer to the class AB power amplifier shown below:a. Determine the dc parameters VB(Q1), VB(Q2), ICQ, VCEQ(Q1), VCEQ(Q2).b. For the 5Vrms input, determine the power delivered to the load resistor.c. Determine the approximate input resistance seen by the signal source if ac=100arrow_forwardRefer to a modified common source amplifier below, please help me to find the input resistance, output resistance, and the voltage gain of the circuit. The parameters of the NMOS are given as: unCox = 0.065 (A/V2), the channel length modulation effect is 0.005 (1/V), W/L = 100um/100um, and the threshold voltage Vt = 1.25 (V). Hope you can show me how to calculate and explain everything in detail.arrow_forward
- The transistor parameters for the circuit shown are VTN = 0.4 V, Kn=0.5mA/V2, and λ = 0.(a) Find (i) the quiescent drain current IDQ and (ii) Draw the small-signal equivalentcircuit and find the small signal transistor parameters.(b) Determine the transfer function.(c) Find the output resistance Rof.arrow_forwardDetermine the folowing A.base current (IB), B. collector current (Ic), C. collector-to-emitter voltage (VCE),D. draw the load line, locate the Q-pointF. input impedance (Zi),G. Output impedance (Zo)arrow_forwardThe ac equivalent circuit for an amplifier is shown . Assume the capacitors have infinite value, RI = 750 Ω, RB = 100 kΩ, RC = 62 kΩ, and R3 = 100 kΩ. Calculate the voltage gain and input resistance for the amplifier if the BJT Q-point is (40μA, 10 V). Assume βo = 100 and VA = 75V.arrow_forward
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