For the operational amplifier circuit shown in Figure 5 find the close loop gain Av. [10...
An amplifier circuit is shown in Fig. 1b. The operational amplifier (op-amp) Ai can be assumed as ideal. The input impedance of this amplifier is 1M2. The gain of this amplifier is -100. R2 V R VVV 小小 Ri Fig. 1b (a) Show that 12 = (b) Find the expression of the voltage gain, Av, in terms Ri, R, R3 and R4. (c) Due to practical reasons, the maximum value to be used for the resistors is set at 1M2....
Solve Question 2 The open loop gain of an amplifier is given by 105 Av = 10 105 If the closed loop gain is 100: 1. Show that this amplifier will be stable 2. Calculate the phase margin Question 2 The open loop gain of an amplifier is given by 105 Av = 10 105 If the closed loop gain is 100: 1. Show that this amplifier will be stable 2. Calculate the phase margin
EEET255 Electronics Page 4 of6 QUESTION 3: [25 marks] Figure 3 shows a feedback amplifier circuit R, is the source resistor, R is the feedback resistor and R, is the load resistor. The op-amp has an internal input resistance of R, an intemal output resistance R, and an internal gain of A Apply the "Systematic Analysis" method in this question. Figure 3 3.a State the feedback topology used in the amplifier circuit and which type of feedback amplifier is shown...
18.9 Find the g parameters for the operational amplifier circuit shown in Fig. P18.9. Figure P18.9 50 10.02 V 3402
Figure 2 shows a multiple op-amp networks combined to produce a gain amplifier circuit. For the given circuit: (i) Name all the type of op-amp circuits shown by Op-Amp 1 until Op-Amp 5. (ii) Calculate the output of each Op-Amp 1 until Op-Amp 4. Assume Vin = 10mV (iii) Determine the output voltage at the last Op-Amp 5. From this value, calculate the gain produced by this Op-Amp network in overall, by using Av=Vos / Vin equation. [10 Marks] CO3,...
a The operational amplifier in Figure 3.a has a slew rate of 0.5V/us and a unity gain bandwid of 5 MHz. Determine () the voltage gain, and (ii) the maximum input frequency such that the output waveform is undistorted. with Vpeak 1V and frequency f. () Determine the cutoff frequency, (ii) plot, to scale, the you use this integrator if the input frequency is 30 KHz? Explain your answer. that any feedback resistance is fixed to 5k2. b. In the...
4. Consider the common-emitter amplifier of Figure 5. Draw the dc circuit and find「CQ. Draw the dc circuit and find ICQ. Find the value of r. Then, calculate values for Voltage gain Av, Open circuit voltage gain Avoc, input impedance Zin, current gain Ai, power gain G, and out- put impedance Zo. Assume operation in the frequency range for which influence of coupling and bypass capacitors can be ignored. +15 V +15 V s in 100Ω CE Figure 5
Exercise 10: Find the gain of the amplifier circuit shown below. Assume op-amp is ideal and RI=R2-R3-3 R and R4-R. V. R
b) An amplifier has values of V = 24mV and Vout gain of the circuit 2V. Calculate the dB voltage (2 marks) c) For the circuit shown in Figure 11, calculate the lower critical frequency due to the output RC circuit. Vec +15 V R 3.9 LO C V. R. 0.33 uF 2N3904 600 n 0.1 F 5.6 k REI 33 0 R 22 k 50 mVpp 1.5 k 100 F (5 marks) Figure 11 12. a) Name the type...
3- OPERATIONAL-AMPLIFIER Nominating ampliar Voltage Show OW Difference ampliar Wate Date amplizier Close R Vout Voutin Vout = vin Buffer = Inverting amplifier Dout = (1 + .. Vout V out 1 V2 ERR Vour (, - v3) Differential Amplifier Non-Inverting amplifier 1- Refer to the op amp in Fig. If v; = 0.5 V, calculate: (a) the output voltage Vos (b) the current in the 10-k! resistor. 25k92 10k02 Oo + 6 2. A 741 op amp has an...