GATE Analog and Digital Electronics: Operational amplifiers: characteristics and applications – Previous Year Questions
15 GATE previous year questions on Operational amplifiers: characteristics and applications (Analog and Digital Electronics, Electrical Engineering) with answers and explanations, from every paper.
- GATE 2017 EE Q45 – The approximate transfer characteristic for the circuit shown below with an ideal operational amplifier and diode will be
- GATE 2015 EE Q17 – Of the four characteristics given below, which are the major requirements for an instrumentation amplifier? P. High common mode rejection ratio Q.…
- GATE 2015 EE Q23 – Consider the circuit shown in the figure. In this circuit R = 1\ k, and C = 1\ F. The input voltage is sinusoidal with a frequency of 50 Hz,…
- GATE 2015 EE Q49 – The op-amp shown in the figure has a finite gain A = 1000 and an infinite input resistance. A step-voltage V i = 1 mV is applied at the input at time…
- GATE 2018 EE Q25 – The op-amp shown in the figure is ideal. The input impedance v ini in is given by
- GATE 2019 EE Q27 – A current controlled current source (CCCS) has an input impedance of 10\ and output impedance of 100\ k. When this CCCS is used in a negative feedback…
- GATE 2019 EE Q44 – In the circuit below, the operational amplifier is ideal. If V 1=10 mV and V 2=50 mV, the output voltage (V out) is
- GATE 2022 EE Q16 – The steady state output (V out), of the circuit shown below, will
- GATE 2022 EE Q36 – The output impedance of a non-ideal operational amplifier is denoted by Z out. The variation in the magnitude of Z out with increasing frequency, f,…
- GATE 2022 EE Q44 – The current gain (I out/I in) in the circuit with an ideal current amplifier given below is
- GATE 2023 EE Q37 – Consider the OP AMP based circuit shown in the figure. Ignore the conduction drops of diodes D 1 and D 2. All the components are ideal and the…
- GATE 2024 EE Q61 – A difference amplifier is shown in the figure. Assume the op-amp to be ideal. The CMRR (in dB) of the difference amplifier is (rounded off to 2…
- GATE 2025 EE Q17 – Assuming ideal op-amps, the circuit represents a
- GATE 2025 EE Q56 – The op-amps in the following circuit are ideal. The voltage gain of the circuit is (round off to the nearest integer).
- GATE 2026 EE Q37 – In the circuit shown, the open loop gain of the operational amplifier is A 0=105. What is the voltage gain of the circuit? (Round off to two decimal…