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Q. Explain Current-to-Current Amplifier ?
The circuit given in Figure is to amplify a current fed to the input of the op amp. Applying KCL at Y,
i1 + iS = io
Since i1 = - vY /R1, Equation becomes
iS - vYR1 = io
Because X is a virtual ground, vY =-iSRf . Hence Equation becomes
The current gain is then given by
Explain Limit Signal Spectrum to Prevent Aliasing? The sampling frequency should at least be two times that of the highest frequency in the incoming signal to avoid aliasing. T
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