Q3) Design an operational-amplifier circuit (using two inverting configurations) with compensating resistor (Rc) for each amplifier, to produce the output of: vo= -5v1+2v2-0.1v3+5v4. Choose a suitable feedback resistor Rf for each amplifier.
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- Assume for a moment that perfectly accurate resistors were available for feedback networks; that is resistor tolerance is 0%. Then any deviation from the value set by the feedback resistor ratio is caused by insufficient raw op-amp gain. What minimum raw gain would be needed to get within 1% if an intended overall gain of 10? What if the intended gain is 100 instead?Given in the figure is a two-stage amplifier design that employs negative feedback. Answer the following questions. Use the notation (R1 + R2 + ... + Rn) for series resistors and (R1 || R2 || ... || Rn) for parallel resistors for clarity and ease. Assume that the transistors are already biased properly in the saturation region and ro1 = ro2 → ∞. Also assume that the capacitors have infinite capacitance. 1.) Find the expression for the open loop gain Av 2.) Derive the resistance Rin which is the resistance that can be seen at the input port of the amplifierWhat approximations are valid for the voltages and currents shown in the figure of an ideal operational amplifier. What conditions must be satisfied for these approximations?
- An op-amp has an open-loop gain of 104 and a dominant open-loop pole at 4Hz. If an inverting amplifier with a gain of -100 is made from this op-amp, what is the resulting amplifier bandwidth? What is the gain-bandwidth product?Question 3: Please write answers to all parts of the question in the separate dot points as shown What is the circuit called? Discuss all components including voltage sources. Which components determine the closed-loop gain of the circuit? Describe the slew-rate of the op-amp. Describe the Common-Mode-Rejection ratio of the op-amp? What is the unity gain bandwidth? Describe the gain bandwidth product (GBP). Describe the GBP relationship between the break (critical) frequency and the gain? What two methods calculate the max frequency? If one produces a higher value of maximum frequency than the other, which would you use as the maximum frequency?Find the desired values below in the feedback amplifier circuit in the figure. a) Voltage and current in amplifier circuit when Rf resistor is open circuit and RL resistor is present Show step-by-step the formula that gives the profit. b) Step of the formula showing the feedback current gain Ai when the Rf feedback resistor is connected find step.
- Compare the closed-loop voltage gain, k = Vo/Vs, for the loaded and unloaded dependent source model of the Voltage Follower with the ideal model of the Voltage to examine the impact of the load, RL on k. - Using any circuit analysis method, derive expressions for the closed-loop gain, k = Vo/Vs, for the ideal opamp Voltage Follower ,both the unloaded ,loaded Voltage Follower using the dependent source model. simplify both of the closed-loop gain expressions for the dependent source models by applying the ideal opamp parameters: A --> infinity , R_i -->infinity and R_0 --> infinity.Suppose the output signal voltage from the amplifier is 35 times the input signal voltage. If the imput and output impedance are both pure resistances of the same value, what is the gainDraw the circuit diagram of the basic noninverting amplifier configuration. Give an expression for the closed-loop voltage gain of the circuit in terms of the resistances, assuming an ideal op amp. Give expressions for the input impedance and output impedance of the circuit.
- Which op-amp network is commonly used to reduce the effect of noise on comparator circuits (Schmitt trigger arrangement)?Using an output networkUsing a negative feedback networkUsing an input networkUsing a positive feedback networkFind the desired values below in the feedback amplifier circuit in the figure. a) Find the no-load voltage gain in the amplifier circuit when the Rf resistor is open circuit. b) Voltage and current in amplifier circuit when Rf resistor is open circuit and RL resistor is present Find your earnings. c) When the Rf feedback resistor is connected, the Rf value that makes the feedback current gain Ai/3 find it. Indicate the assumptions you take in your transactions.a) Design an inverting amplifier with a gain of 4. Use an ideal op amp, a 30 kohm resistor in the feedback path, and +-12 v power supplies. b) Using your design from part a, determine the range of input voltages that will keep the op amp in it's linear operating region. c) suppose you wish to amplify a 2 V signal, using your design from part a, with a variable feedback resistor. What is the largest value of feedback resistance that keeps the op amp in its linear operation region? Using this resistor value, what is the new gain of the inverting amplifier?