Consider the network above with V, = 3V, V, = 2V, and R = 1.5k2. Treat the op-amp as real, with B = 1.8 × 10°, R̟ = 3MQ, and R, = 402. a. What is the voltage v, across the input terminals? Vx b. What is the current i, through the input terminals? iz = II
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- Create Op-amp circuit... with:Vin= -1 Volt (DC) Vout = 14 Volt (DC) Only resistors with 1k, 3k, 5k, 7k and 11k ohms can be used while the circuit is being built. The V+ value of the LM741 IC to be used for op-amps will be 20 volts and the V- value will be -20 volts. You need to use at least one inverting amplifier and one non-inverting amplifier to build the circuit. Question: Write the gain formula of the circuit and calculate it, and write how we should find the Vout value..3. A generic op-amp circuit is shown in Figure 3. With the given data, answer the following by showing the corresponding circuit and by explaining your answer or presenting the solution. a. If VA-0, VB-1V, RA-RB-10kQ, R1=70kQ, R2=00 and vout-8V, which terminal (A or B) is the noninverting input? b. If VA-10, VB=0V and B is the inverting input, select RA, RB, R1, and R2 and to obtain an output voltage of 20V. c. If VA=VB=1V, R1=0, R2=∞ and Vout=1V, which terminal (A or B) is the inverting input? R2 VA RA OVout RB B VB R1The two input terminals of an op-amp are connected to voltage signals of strength 745µV and 740µV repectively. The gain of the op-amp in common mode is 50 and CMMR is 8&IB. Calculate the output voltage and % of error due to common mode.
- Example 07: For the circuit shown in the figure, calculate the output voltage when 1- R1 = R2 R3 = R4 = 100n 2- R1 = R2 = R3 = 1002 and R4 = 1202 Consider the circuit use an ideal Op-Amp and its resistances do not load the bridge circuit. 12K ww 10K 10K 12K 10VH: Design OP-Amp eircwt that Poduce an out Put an given by Uo = - ( 4 V,t Uz to.l U3) If u, = 2 sinwt = 5 V and U3 = - 100V sketch the ont Put vo ltage waveform ?H.W: Derive the following and draw the circuit. ⚫ The output voltage of the summation Op-Amp. ⚫ The output voltage of the subtractor Op-Amp.
- Example 07:- For the circuit shown in the figure, calculate the output voltage when 1- R1 = R2 = R3 = R4 = 1002 2- R1 = R2 = R3 = 100N and R4 = 1202 Consider the circuit use an ideal Op-Amp and its resistances do not load the bridge circuit. 12K 10K E 10V 10K 12K ww1- Mention any two advantages of Integrated Circuit . 2- For the circuit given below : Vin is a sine wave Vinpp=6 V and Vref=-2.4 V , Assume Vsat=±12V Name the circuit and draw the input and output waveforms . Vin Vref 3- Explain why open-loop op-amp configurations are not used in linear applications? Draw the block diagram of opamp and define the function of each blockAs an Electronic Engineer in XYZ Analog IC Design Centre, you are required to design Operational Amplifiers (Op-Amp). Based on combination of ideal Op-Amp as illustrated in Figure Q3 (b), derive the output voltages Vo1, V02, V03, and V04. If V₁ = 4 V and V2 = 2 V, determine V04. R Vio-W V₂0- 2R ww R R R __ Voi R R 3R V03 Voz Figure Q3 (b) 2R ww 4R M 2R R V04
- Q4 Consider you have to design a convertor to produce an output voltage of 36 V from a 3.3-V input DC source. The output current is 0.1 A. The design of above convertor should be for the output ripple voltage of 2 percent. The effect of ESR should be considered having relation to the capacitor value by as, rc = 10-5/c Design the convertor subject to above mentioned design requirements and justify why a boost convertor will not be a good choice here.1) Op-amp limiting factors - Current Saturation U2 Vin R1 OUT OPAMP R2 RLoad The saturation output current for the above op-amp is +/- 15mA. For the following input signals, determine if the output appears as would be expected in an ideal circuit. Include sketches of the output voltage. a) R1 = 100, R2 = 900, an open circuit load, and Vin is 2Vpp triangle wave with zero offset voltage (Vmax 1V, Vmin = -1V) and a period of 2ms. b) R1 = 100, R2 = 900, a 1k load, and Vin is 2Vpp triangle wave with a 1V offset voltage (Vmax=2V, Vmin = 0V) and a period of 2ms. c) R1 = 100, R2 = 900, an open circuit load, and Vin is 4Vpp triangle wave with zero offset voltage (Vmax=2V, Vmin = -2V) and a period of 2ms.- V2 15Vdo 3 U1A R1 2 1k V- LM324 1k V3 15Vde | VOFF = 0 VAMPL = 1 FREQ = 2k AC = 0 0. R2 Figure 4. Operational amplifier circuit. What frequency does the output voltage (across R3) have? What is the amplitude of the output voltage? From the output waveform and the input waveform, determine the gain of the op-amp circuit. Does this match with what you predicted? How could you change this circuit so that the output voltage would be nearly the same as the input voltage? What purpose would that serve? Can you modify the existing circuit and verify this experimentally? What is the phase difference between the output and input voltage? Derive the transfer function for the output-input relationship for the operational amplifier. How would the gain and the output change if a capacitor were in the feedback path instead of a resistor? (Examine the circuit using phasors and impedance and circuit analysis techniques). -w-