You are required to design an inverting amplifier, based on an op-amp with an open-loop gain which varies in magnitude with frequency as shown in the graph below. Your amplifier must operate at a frequency of 100 kHz. What value for the open-loop gain should you use to design the amplifier? click here for image 9 O Infinity O 1000 O 100 O 10 120 100 80 60 40 20 0 10⁰ 10¹ Magnitude of Open-loop gain vs Frequency 102 103 Frequency (Hz) 104 105 106

You are required to design an inverting amplifier, based on an op-amp with an open-loop gain which varies in magnitude with frequency as shown in the graph below. Your amplifier must operate at a frequency of 100 kHz. What value for the open-loop gain should you use to design the amplifier? click here for image 9 O Infinity O 1000 O 100 O 10 120 100 80 60 40 20 0 10⁰ 10¹ Magnitude of Open-loop gain vs Frequency 102 103 Frequency (Hz) 104 105 106

Delmar's Standard Textbook Of Electricity

7th Edition

ISBN:9781337900348

Author:Stephen L. Herman

Publisher:Stephen L. Herman

Chapter18: Resistive-inductive Parallel Circuits

Section: Chapter Questions

Problem 13PP: In an R-L parallel circuit, IT=1.25 amps, R=1.2k, and XL=1k. Find IR

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Consider the active circuit with the schematic:a. Assuming it's an ideal op amp, derive the circuit’s transfer function as a function of frequency, H(jw). Make sure it in canonical form.b. We want a DC gain of 40dB. If the op amp has value of Rin = 10MΩ and Rout = 50Ω, choose appropriate values for R1 and R2. Explain why your selected values of R1 and R2 allow you to ignore Rin and Rout for the remainder of the problem. c. If L = 1H, sketch the straight-line approximation of the Bode plot for the circuit’s gain assuming the op amp can still be considered as ideal.d. The op amp you select turns out to be non-ideal, and it has a real pole at wC = 1krad/s. Write the updated transfer function for your circuit (using your values of R1, R2, and L = 1H). Make it in the canonical form.e. Sketch the straight-line approximation of the Bode plot for the circuit with your updated transfer function from D.
Consider the active circuit with the schematic:a. Assuming it's an ideal op amp, derive the circuit’s transfer function as a function of frequency, H(jw). Make sure it in canonical form.b. We want a DC gain of 40dB. If the op amp has value of Rin = 10MΩ and Rout = 50Ω, choose appropriate values for R1 and R2. Explain why your selected values of R1 and R2 allow you to ignore Rin and Rout for the remainder of the problem.
Design an inverting amplifier to provide a closed-loop voltage gain of Ay = -22 V/V. The maximum input voltage signal is 30 mV with a source resistance in the range of 1 kls R, < 3 kN. The variable source resistance should introduce a difference in the gain no more than a 2% of the gain factor. What is the range in output voltage?
For the circuit shown below, if the differential gain (?? ) of the op-amp is (50000) and the CMRR in (db) is (34). Find the output voltage (v_out).
Consider the active circuit:a. Assuming it's an ideal op amp, derive the circuit’s transfer function as a function of frequency, H(jw) in canonical form.b. We want a DC gain of 40dB. If the op amp has value of Rin = 10MΩ and Rout = 50Ω, choose appropriate values for R1 and R2. Explain why your selected values of R1 and R2 allow you to ignore Rin and Rout for the remainder of the problem.
An op amp has a gain of 100 dB at dc and a unity-gain frequency of 5 MHz. What is fB? Write the transfer function for the gain of the op amp.
The upper critical frequency of an op-amp’s open-loop response is 200 Hz. If the midrange gain is 175,000, answer the following: What is the ideal gain at 200 Hz? What is the actual gain? What is the op-amp’s open-loop bandwidth?
What is the cut–off frequency of an op-amp if the unity-gain frequency is 2.8 MHz and the open-loop gain is 200,000? Show the details of your work. Write your solution on a white typewriting paper, scan it in JPEG format and upload it to the space provided below.
Consider the active circuit with the schematic: (ONLY ANSWER C-E) a. Assuming it's an ideal op amp, derive the circuit’s transfer function as a function of frequency, H(jw). Make sure it in canonical form.b. We want a DC gain of 40dB. If the op amp has value of Rin = 10MΩ and Rout = 50Ω, choose appropriate values for R1 and R2. Explain why your selected values of R1 and R2 allow you to ignore Rin and Rout for the remainder of the problem. c. If L = 1H, sketch the straight-line approximation of the Bode plot for the circuit’s gain assuming the op amp can still be considered as ideal.d. The op amp you select turns out to be non-ideal, and it has a real pole at wC = 1krad/s. Write the updated transfer function for your circuit (using your values of R1, R2, and L = 1H). Make it in the canonical form.e. Sketch the straight-line approximation of the Bode plot for the circuit with your updated transfer function from D.
a) Design a non-inverting amplifier using an ideal op amp that has a gain 7.5.b) If you wish to amplify signals between -2V and 1.2V using the circuit you designed in part (a) what arethe smallest power supply voltages you can use?c) Draw your final circuit diagram.d) Assume that the voltage signal source is vs = −1V and the feedback resistor Rf is replaced with avariable resistor. Specify the range of Rf (in kΩ ) which will cause the op amp to saturate?
(a) Design a single-stage inverting ampliﬁer with a gain of 46 dB using an operational ampliﬁer. The input resistance should be as low as possible while achieving the op amp output drive capability mentioned here. The ampliﬁer must be able to produce the signal vo = (10sin1000t) V at its output when an external load resistance RL ≥ 5k Ω is connected to the output of the ampliﬁer. You have an operational ampliﬁer available whose output is guaranteed to deliver ±10 V into a 4-kΩ load resistance. Otherwise, the ampliﬁer is ideal. (b) If the ampliﬁer input signal is vi = V sin1000t, what is the largest acceptable value for the input signal amplitude V? (c) What is the input resistance of your ampliﬁer?
3D Problem 1. (P1) Three op-amps are connected in cascade configuration. An 80 microVolts signal is connected to the non-inverting input of the first op-amp. Both the 2nd and 3rd op-amps operates as inverting amplifiers. All feedback resistors are 420 KOhms while the input resistances are 71.4kOhms, 19.1kOhms, and 14KOhms respectively. Determine the output of the third stage stage. a.9 V b.9000 mV c.79.2 V d.792 mV