Consider the circuit shown in Figure P 11.39 . The circuit and transistor parameters are
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Microelectronics: Circuit Analysis and Design
- For the transistors in this question, use |Vt| = 0.1V, |VA| = 10V, kn,p = 12.5mA/V2. The signal source has 0.1 mV amplitude and 1 kHz frequency. Calculate Rout, Gm and Av for the circuits separately ?arrow_forwardThe ac equivalent circuit for an amplifier is shown. Assume the capacitors have infinite value, RI = 100 kΩ, RG = 10 MΩ, RD = 560 kΩ, and R3 = 1.5 MΩ. Calculate the voltage gain for the amplifier if the MOSFETQ-point is (10 μA, 5 V). Assume Kn = 100 μA/V2 and λ = 0.02 V−1.arrow_forwardThe ac equivalent circuit for an amplifier is shown. Assume the capacitors have infinite value, RI =750Ω, RB =100 kΩ, RC =100 kΩ, and R3 =100 kΩ. Calculate the input resistance and output resistance for the amplifier if the BJT Q-point is (75 μA, 10 V). Assume βo =100 and VA =75 V.arrow_forward
- (a) Suppose υbe(t) = 0.005 sin 2000πt V in the bipolar amplifier as shown . Write expressions for υbe(t), vce(t), and υCE(t). (b) What is the maximum value of IC that corresponds to the active region of operation?arrow_forwardIn order to express the effect of the internal capacitors of BJT and the high frequency reception, the current gain expression depending on the frequency (Figure b) (hfe) is used in the case of collector emitter short circuit, voltage source connected at base end and emitter grounded (Figure la).. The catalog information of the 2N2222 transistor is given in Figure Ic. In the catalogue, when Ic=20 mA, it is seen as fT=250 MHz. a) Find the total capacitor effect for the case where gm> > wCμ. (Cpi) + (Cμ) = ?pFarrow_forwardIn the common emitter amplifier, R1 = 50Ω, R2 = 1kΩ, and CL=1 pF. Determine the quiescent collector current, ICQ, needed such that the unity gain frequency, fu, = 1 GHz. Show your complete solution and state all your assumptions.arrow_forward
- What is the voltage gain of the common-emitter amplifier as shown? Assume βF = 135, VCC = VEE = 10 V, R1 = 20 kΩ, R2 = 62 kΩ,RC = 13 kΩ, and RE = 3.9 kΩ.arrow_forwardConnect the elements given below as a BJT amplifier circuit with common emitter. BJT is BC547Bterminals from left to right are named collector, base and emitter respectively. 9V battery as VCC sourcewill be used. The audio signal obtained from the microphone will be connected to the circuit as the input signal. C0 at the outlet, CI at the inlet,CE is given as a bypass capacitor.arrow_forwardThe ac equivalent circuit for an amplifier is shown . Assume the capacitors have infinite value, RI = 10 kΩ, RB = 5 MΩ, RC = 1.5 MΩ, and R3 = 3.3 MΩ. Calculate the input resistance and output resistance for the amplifier if the BJT Q-point is (2 μA, 2 V). Assume βo = 40 and VA = 50 V.arrow_forward
- SOLVE NUMBER 2 .1. Solve the output voltage if the gain is 24 db with aninput of 5mV.? 2. Assume a load resistor, RL of 2.2kΩs and a supply voltage of 24v. Calculate the Collector current (Ic) flowing through the load resistor when the transistor is switched fully "ON", assume Vce = 0, & β = 100. Also find the value of the Emitter resistor, Re with a voltage drop of 1.3v across it, R1, R2, and Ib. Assume also a value of 9 times Ib flowing through the resistor R2, while 10 times Ib flowing through R1.arrow_forwardFor the NMOSFET in the circuit below, K = 4.00mA/V^2, VTHN = 1.00V, l = 0V^-1, and VIN = 4.00V.a. Solve for IDS and VOUT and verify any assumptions you made. b. Derive an equation for the small signal gain of the circuit, vout / vin as a function of the vin radian frequency, w.arrow_forwardThe ac equivalent circuit for an amplifier is shown . Assume the capacitors have infinite value, RI = 10 kΩ, RG = 1 MΩ, RD = 3.9 kΩ, and R3 = 33 kΩ. Calculate the voltage gain for the amplifier if the MOSFET Q-pointis (2 mA, 7.5 V). Assume Kn = 1 mA/V2 and λ = 0.015 V−1.arrow_forward
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