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 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…
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.…
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…
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…
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…
555 IC Timer Interview Questions and Answers: 1. What is 555 timer? Ans. The 555 timer is a highly stable IC that can produce accurate and highly stable time delays or oscillation. The frequency of oscillation…
Active Filters Interview Questions and Answers: 1. What is meant by ‘frequency response’ of a filter? Ans. A graph of the magnitude of the gain versus frequency is called a frequency response plot. 2. The gain…
Operational Transconductance Amplifier (OTA) Interview Questions and Answers: 1. What is OTA ? Ans. OTA stands for operational transconductance amplifier which is a specially designed single chip voltage input, current output amplifier. 2. Give the applications…
Digitally Controlled Frequency Synthesizers Interview Questions and Answers: 1. What is PLL? Ans. PLL is basically an electronic circuit that consists of a phase detector, a low-pass filter, a dc amplifier and a voltage controlled oscillator…