cse • paper_2 • solid_state_electronicscse-2023-subject-08-005
Operational amplifier — UPSC CSE 2023 Physics PYQ
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(i) Determine the input and output impedances of the amplifier in given figure. The op-amp datasheet gives Z_{\text{in}} = 2\text{ M}\Omega, Z_{\text{out}} = 75\ \Omega and A_{\text{ol}} = 200,000 (open loop voltage gain). (ii) Find the closed-loop voltage gain.
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