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…
Regulated and Switching Power Supplies Interview Questions and Answers: 1. What is a regulated power supply? Ans. A regulated power supply is an electronic circuit designed to provide constant dc voltage of predetermined value across load…
Number Systems and Codes Interview Questions and Answers: 1. What is meant by radix (or base) of a number system? Ans. Radix or base of a number system is the number of digits or distinct symbols…
Logic Gates and Boolean Algebra Interview Questions and Answers: 1. What is Boolean algebra? Ans. Boolean algebra is a mathematical system of logic in which truth functions are expressed as symbols and then these symbols are…
Logic Circuits Interview Questions and Answers: 1. What is a combinational circuit? Ans. In a combinational circuit, the output depends upon present input(s) only i.e., not dependent on the previous input(s). The combinational circuit has no…
Digital Logic Families Interview Questions and Answers: 1. What is the difference between a bipolar logic family and unipolar logic family? Ans. Logic family using BJTs is known as bipolar logic family whereas the logic family…