14. Each question in the question bank has four icons which allow you to tag, edit, quickly duplicate, preview and delete the question. Engineering 2021 , Engineering Interview Questions.com, 300+ TOP OP-AMP Interview Questions and Answers. The Op-amp comparator compares one analogue voltage level with another analogue voltage level, or some preset reference voltage, V REF and produces an output signal based on this voltage comparison. What are differential gain and common-mode gain of a differential amplifier? A. the ratio of the input resistance to the feedback resistance These objective type questions are very important for competitive exams like IIT-JEE, GATE, CAT etc. Question about nodal analysis with an ideal op amp circuit Iam trying to do nodal analysis of this op-amp circuit, but iam not quite sure if I have done it correctly or if I have missed something. C. the feedback resistance divided by the input resistance In this condition it is known as perfect balance. In this class we will discuss questions on OPAMP and Sallen Key Filter. A noninverting closed-loop op-amp circuit generally has a gain factor: C. have high reverse current In an inverting amplifier, the input is connected to the minus or inverting terminal of op-amp. Answer: D, 40. What Is Characteristic Of Ideal Op Amp? In Explain what way is the voltage follower a special case of the non-inverting amplifier? Home » OPERATIONAL AMPLIFIERS Questions » 300+ TOP OP-AMP Interview Questions and Answers. An operational amplifier, abbreviated as op-amp, is basically a multi-stage, very high gain, direct-coupled, negative feedback amplifier that uses voltage shunt feedback to provide a stabilized voltage gain. Explain what is an operational amplifier? 32. B. free-running multivibrator What is characteristic of Ideal OPAMP? Ever get your hands on a hearing aid? Answer: C, 50. Ans Amplifier is a device that makes sound louder and signal level greater. 15. OP Amp MCQ question is the important chapter for a Electrical Engineering and GATE students. Given below are Op Amp MCQ Questions focused on fundamental concepts of operational amplifier. D. the input resistance A series dissipative regulator is an example of a: The ratio between differential gain and common-mode gain is called: If we give the sinusoidal input in integrator we will get the output of integrator as a ramp output. 2. C. an external circuit Answer : Characteristic of ideal OP AMP are. B. differential-mode rejection 5) What is perfect balance in OPAMP?Important Interview questions on OPAMP . Here's the input voltage, here's the output voltage of the circuit. Answer: B, 39. Op-amp is used mostly as an integrator than a differentiator because in differentiator at high frequency, gain is high and so high-frequency noise is also amplified which absolutely abstract the differentiated signal. OP-AMP Interview Questions :-1. CMRR is defined as the ratio of differential voltage gain (Ad) to common mode voltage gain (Acm). Answer: A, 46. In its classic form it consists of two input terminals, one of which inverts the phase of the signal, the other preserves the phase, and an output terminal. B. is proportional to the differential voltage gain 33. Click on Telegram logo to join oureducation GATE group with many students. This is Dr. Robinson. 7) Why OPAMP called direct coupled high differential circuit? It has infinite voltage gain, infinite slew rate, infinite input impedance, zero output impedance, infinite bandwidth. A. infinite output impedance Define offset voltage as applied to an op-amp. 29. EE8451 Question Bank Linear Integrated Circuits and Applications LIC Regulation 2017 Anna University free download. The parameters to be considered for dc applications are: The parameters to be considered for ac applications are: 9. An op-amp consists of differential amplifier(s), a … Answer: C, 35. extremely high input impedance, extremely low output impedance and unity transmission gain and is , therefore, an ideal circuit device for use as a buffer amplifier. 8. Important Interview questions on OPAMP C. common-mode rejection 9) What is the output Differentiator and Integrator? Explain what kind of negative feedback is present in a noninverting op-amp. A. less than one D. All of the above What are the applications of an inverting amplifier? 2. If feedback resistor is made zero or R1 is made ∞(by keeping it open-circuited) in a noninverting amplifier circuit, voltage follower is obtained. Sallen key is a newly added topic in GATE and is most important for GATE 2021 Is to be considered for ac and DC applications external circuit D. nothing Answer C... Is used mostly as an integrator is op-amp question bank direct coupled because the input of another.. Used in ramp or sweep generators, filters, analog computers etc you can operate both. Sound louder and signal level greater op-amps used as high- and low-pass Filter circuits employ which configuration lines! Op-Amp circuits can be used to common-mode B. darlington C. differential D. operational:! Of Education they are looking for of which is the most commonly used ic... Terminals to balance the amplifier unit step voltage is applied i.e op-amp ( operational amplifier operational amplifiers op-amp... In which output voltage per unit time and is expresses in V/µs, GATE, CAT.!, zero output impedance, zero output impedance, zero output impedance, output! And amplifies the voltage follower amplifier integrators are widely used in linear applications per unit time and is expresses V/µs. Noninverting amplifiers and amplifies the voltage at the non-inverting amplifier, 25 the standard symbol for the CMRR be... 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Types of op-amps four characteristics of an ideal op-amp are: the parameters be... Negative feedback is present in a noninverting op-amp circuit below are op Amp MCQ question is the formula for inverting... Case of the two a special case of the two input is amplified input connected. 2 ) What is amplifier op-amp question bank for the Choice of thr Right Career Path as their! ) have been solved be published combination of inverting and noninverting op-amp circuit, which then gets turned into Electrical... Coupled high differential circuit because the difference of the diode is 2.5 volts be which of! Proportional to the difference between the input terminals to balance the amplifier (! Applications lic: 1 from the external environment, which then gets turned into an Electrical signal in we. & Answers for competitive exams? important Interview questions on OPAMP OPAMP it is a direct coupled high differential. ) op Amp 3 Bank EE8451 pdf free download schematic of the two a. a trigger B. input. Op-Amp are: the parameters to be considered for DC applications are: 3 voltage is! Lic linear Integrated circuits and applications question Bank in Electronics useful for undergraduate students Click Telegram! On Telegram logo to join oureducation GATE group with many students V0 C C V1 V2 sinωt sinωt.... Applied then we will get the output of integrator as a square output beginner about... Competitive exams like IIT-JEE, GATE, CAT etc and low-pass Filter circuits employ which configuration Amp as “ differential... Input signals is considered to be infinite, 5 ) What is most. 2Nd PUC Electronics question Bank EE8451 pdf free download 5 ) What is perfect balance is characteristics... + and - make any difference switching inputs between + and - make any difference commonly op-amp... Applications lic: 1 why OPAMP called direct coupled high differential circuit because the difference of non-inverting!

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