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GATE 2022 EE – Question 16

Analog and Digital Electronics · Operational amplifiers: characteristics and applications · 1 mark · Multiple choice

The steady state output ($V_{out}$), of the circuit shown below, will

Diagram for GATE 2022 EE question 16
  1. saturate to $+V_{DD}$
  2. saturate to $-V_{EE}$
  3. become equal to 0.1 V
  4. become equal to $-0.1$ V

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Show answer and explanation

Correct answer: (B) saturate to $-V_{EE}$

Explanation

The circuit is an integrator (capacitor $C_1$ in the feedback path) fed by a constant $+0.1$ V through $R_1$ at the inverting input. The output ramps as $-\frac{0.1}{R_1C_1}t$ and, with no DC feedback, runs away until it saturates at the negative supply $-V_{EE}$.