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The parameters of the diff-amp shown in Figure 11.2 are
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Microelectronics: Circuit Analysis and Design
- Consider 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_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_forwardThe transistor parameters for the differential amplifier shown in Figure P11.32 are VT N = 0.5 V, k n = 80 µA/V2, W/L = 4, and λ = 0. (a) Find RD and IQ such that ID1 = ID2 = 80 µA and vO2 = 2 V when v1 = v2 = 0. (b) Draw the dc load line, and plot the Q-point for M2. (c) What is the maximum common-mode input voltage? Figure p11.32arrow_forward
- In the push-pull stage given (in the photo attached), IS1 = 5 × 10−17 A and IS2 = 8 × 10−17 A. Calculate the value of VB so as to establish a bias current of 5 mA in Q1 and Q2 (for Vout = 0). If the peak input swing is 2 V and RL = 8Ω : Calculate the small-signal voltage gain for Vout ≈ 0 Use the gain obtained in (i) to estimate the output voltage swing. Estimate the peak collector current of Q1 assuming that Q2 still carries 5 mAarrow_forwardRefer to the differential amplifier circuit shown below . Determine the quiescent DC voltage at the collector terminal of each transistor assuming VBE of two transistor are negligible. What will be the quiescent DC values if VBE is taken to be 0.7 V.arrow_forwardAmplifier circuit is show below has a single ac input and one ac output. Assuming 2N2222 transistor: 1- Determine the Q point, then illustrate it on the transistor I-V characteristic curves. 2- Is the transistor in the active region? Explain thoroughly. 3- Construct the T-model of the transistor with all parameters labelled and evaluated. Assume room temperature. 4- Draw a complete small signal circuit model, then find the voltage gain. Explain two characteristics of this amplifier. 5- Calculate the current gain, the input resistance, and the output resistance.arrow_forward
- Determine the values of the elements of the common-source amplifier as shown such that gain is high and drain current is 11.33 amp.arrow_forwardDesign a common-source amplifier such that drain current is 11.33 Amp. State the tech parameters and assumptions made.arrow_forwardA common-source amplifier with a drain resistance, RD = 4.7 k Ω, is powered using a10 V power supply. Assuming that the transconductance, gm, is 520 μA/V, the voltage gain of the amplifier is closest to:arrow_forward
- Problem 1: Consider the circuit shown below. The transistor parameters are Kn1 = 0.5 mA/V2 , Kn2 = 0.2 mA/V2 , VT N1 = VT N2 = 1.2 V, and λ1 = λ2 = 0. The quiescent drain currents are ID1 = 0.2 mA and ID2 = 0.5 mA. (a) Determine the small-signal voltage gain of the given multistage amplifier. Answer: -6.14. (b) Calculate the small-signal output resistance Ro. Answer: 1.32 kΩ. Problem 2: The transistor parameters for the given circuit are β1 = 120, β2 = 80, VBE1 (on) = VBE2 (on) = 0.7 V, and VA1 = VA2 = ∞. (a) Determine the quiescent collector current in each transistor. Answer: IC1 = 2.253 mA, IC2 = 69.73 mA. (b) Find the small-signal voltage gain Av = vo/vs. Answer: 0.99. (c) Determine the input and output resistances Rib and Ro. Answer: Rib = 467.6 kΩ, Ro = 0.512 Ωarrow_forwardAfter power factor compensation, the value of active power P decreases since current value decreases Select one: True Falsearrow_forwardTopic: Input and Output Characteristics of Transistor in Common Base Configuration Answer in 2-3 sentences each. Need a kind tutor that will do it for me. Thank you! 1. What are the applications of the common base (CB) configuration? 2. What are the output and input impedances of CB configuration?arrow_forward
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