(Total 10) Consider the following circuit where all transistors are identical with β-o, VA-e, versat: 0.3V,...
All transistors in the circuit below are identical. Transistor parameters are hFE=hfe=β= 200, IS=10 fA and VT = 26 mV. a. Obtain the differential mode gain equation: Add=(V01-V02)/(V1-V2). b. VDD=5V, -VSS=-5V, IB=2mA, RC=2kΩ and RL=3kΩ. Calculate the differential mode gain (Add) of the circuit. c. How do you connect a common emitter stage to one of the outputs of the circuit? Please draw on the circuit. +VDD Rc 3 Rc Voi VO2 w R Vi V2 IB -Vss
Problem 1: All the transistors in the circuit have β-110, VA-00 Assuming that approximately IC3-220μΑ and IC4-1.9mA, A] Evaluate Rout of the current source and the figure of merit of the current source C] Find the gains of the differential pair (single-ended output), the common-emitter stage, and the overall gain , the common-emitter stage, +15V RC1 RC2 Q4 Q1 Q2 VO V2 RC4 R1 Q3 R2 R3 -15V Problem 1: All the transistors in the circuit have β-110, VA-00 Assuming...
The following circuit is used for questions Q5 through Q8. Assume all transistors are in forward active mode. Suppose that B = 100 for each transistor and that VBE = 0.7 V for each transistor while in forward active mode. Suppose that VT = 0.025 mV. Ignore r, throughout the next four questions pertaining to this circuit. +20 V +20 V +20 V 10 kl 50 k 2 Im +20 V Rout - 1.2 kr} Zur 32018 3892 Fig.2 Q.6...
Q5: In the following circuit, identical diodes Dl and D2 use constant voltage drop (CVD) model. VD,ON = 800 mV, R1 = 1 K. Determine the change in Vout if Vin changes from +2.4V to +2.5V. (Hint: use small signal model) Vin - DR Nyu out 'out 1K12 z Q6: The following BJT circuit has VBE = 0.8V, VA = 10V, Vcc = 2.5V. The amplifier must be designed for maximum small signal voltage gain Ay, while maintaining Q1 operating...
An analogue amplifier circuit is shown in Figure 1 below. VDD Q5 15V JL - Vout Irer RI Vina JET T7T Figure 1 Integrated amplifier circuit. Circuit Data: Vpp = 15 V, IREF = I1 = I2 = 1.0 mA Transistor Data: Q1: NMOS, un Cox = 80 A/V?, W/L = 100 um/0.8 um, Vtn = 0.8 V, L = 0.10 um/V Q2: NPN BJT, B = 100, Vbe = 0.7 V, VA = 150 V Q3, Q4: NMOS, un...
The 1 mA. V, ls -VE -15 15 V, in the following differential amplifier circuit, Vcc parameters are given as β, 100, VBE# 0.7 V, pr-25 mV, K.-100 V. transistor Rc-10 kΩ For: RE-150 Ω Rc Rc REE-200 kΩ a) What is the input differential resistance, Rid b) What is the overall voltage gain vV? You c) What is input common mode resistance, d) What is the worst case common mode gain that appear across the two input terminals? (4...
1. Consider the following current mirror combination, where all transistors have the same kn'(W/L) = kp'(W/L) = 2mA/V2, and VTN-1У, VTP--1V. It is also given that VDD1-10V, VDD2-8V. Remember that for saturation the drain current is given by IDー½ k,"(W/L) (VGS-Yn)" for NMOS and ID ½ kp"(WL) (VGS-V,»)2 for PMOS. You can ignore the channel modulation for all transistors. (a) Find the value of R so that I.-1mA. (b) Are transistors Q1, Q2, Q3 in saturation? (c) What is the...
A common source amplifier circuit based on a single n-channel MOSFET is shown in Figure 4b. Assume that the transconductance gm-60 mS (equivalent to mA/ V) and drain source resistance, os, is so large it may be neglected. 0) Calculate the open circuit voltage gain Av Yout/ Vis. i) The amplifier has a load of 10 k2. Determine the current gain Va. = 12 V 150k 4k3 Vout Vin 200k GND = 0 V Figure 4b a) State the name...
please answer all spring 2019 Name 19. Gain Margin (dB) is: e1OdByb) 15dBa c) 20 d8; d) 35dB; e) 45d8 20. Phase margin (degree) is close to: a) 0; b) 45pe90) 135) e) 180 21. A MOSFET transistor gm 2m5, Cgs 2pF, Ced 0.5pF, its cut-off frequency, ft, is close to: a) 100 b) 300MHz ) 60OMH)1GHe) SGH 22. The cut-off frequency of a BIT with gm-40m5, r pi-2.5Kohm, r o-20Kohm, c mu 1pF and c pi is close to:...