Interview Questions and Answers

Linear Waveshaping Interview Questions and Answers: 1. What is waveforming? Ans. Waveforming is a process of generating new waveshape from another waveform using some network. 2. What is meant by linear waveshaping? Give some examples of linear waveshaping circuits. Ans. Linear waveshaping involves passage of signal through linear systems such as R-C, R-L, R-L-C circuits and […]

Nonlinear Waveshaping Interview Questions and Answers: 1. What is meant by nonlinear waveshaping? Ans. When any wave is applied at the input of a nonlinear device (such as a diode or transistor), the shape of the output wave varies nonlinearly with input wave. This process is called the nonlinear waveshaping. 2. What is clipping? Ans. Clipping is

Switching Circuits (Multivibrators) Interview Questions and Answers: 1. What is an electric switch? Ans. An electric switch is a device that can turn on or off current in an electrical circuit. 2. What is meant by a switching circuit ? Ans. Switching circuit is that circuit which can turn on or off current in an electrical circuit.

Integrated Circuits Interview Questions and Answers: 1. What is an IC? Ans. An integrated circuit (IC) is one in which all active and passive components such as transistors, diodes, resistors, capacitors etc. are automatically part of a small semiconductor chip. 2. Why are ICs so cheap? Ans. ICs are so cheap because of simultaneous production of hundreds

Operational Amplifiers Interview Questions and Answers: 1. What is an op-amp? Ans. The name operational amplifier stems from its original use for mathematical operations (such as addition, subtraction, multiplication, differentiation and integration) and is abbreviated as op-amp. It is a direct-coupled high gain amplifier usually consisting of one or more differential amplifiers and usually followed by

Op Amps with Negative Feedback Interview Questions and Answers: 1. What kind of negative feedback is present in a noninverting op-amp? Ans. Negative voltage series feedback. 2. What is effect of negative feedback in a noninverting amplifier on input impedance and bandwidth? Ans. Negative feedback in a noninverting amplifier increases each of the input impedance and bandwidth

Frequency Response of an Op-Amp Interview Questions and Answers: 1. What is meant by frequency response? Ans. The manner in which the gain of an op-amp responds to different frequencies is known as the frequency response. A frequency response plot is a graph of the magnitude of gain with respect to frequency. 2. What is meant

Linear Applications of Op-Amps Interview Questions and Answers: 1. Give the examples of linear circuits. Ans. Adder, subtractor, differentiator, integrator, voltage-to-current converter, current-to-voltage converter, instrumentation amplifier fall under the category of linear circuits. 2. What is an adder or summing amplifier? Ans. Adder or summing amplifier is a circuit that provides an output voltage proportional to or

IC Waveform Generators Interview Questions and Answers: 1. What is an oscillator? Ans. Oscillator may be defined as a circuit which generates an ac output signal of very high frequency without requiring any externally applied input signal or it may be defined as an electronic source of alternating current (or voltage) having sinusoidal or non-sinusoidal (square,

Nonlinear Circuits Interview Questions and Answers: 1. What is a comparator and where is it used ? Ans. A comparator is essentially an op-amp operated in open-loop configuration. The output signal is either a high or low saturated voltage. It is used in digital interfacing, Schmitt triggers, analog­-to-digital converters, oscillators etc. 2. What are the limitations