Transcription of Example An op amp circuit analysis lecture - ITTC
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Example An op amp circuit analysis lecture - ITTC
2/21/2011 Example An op amp circuit analysis lecture 1/23 Jim Stiles The Univ. of Kansas Dept. of EECS Example : An op-amp circuit analysis Let s determine the output voltage vout (t) of the circuit below: R2 =3K R1 = 1K + - ideal R3 =1K vout (t) vin (t) I=2 mA 2/21/2011 Example An op amp circuit analysis lecture 2/23 Jim Stiles The Univ. of Kansas Dept. of EECS Without this step, your answer (and thus your grade) mean nothing The first step in EVERY circuit analysis problem is to label all currents and voltages: 1i3i2ii i+1v+ 2v+ 3v+ R2 =3K R1 = 1K + - ideal R3 =1K vout vin I=2 mA v+v 2/21/2011 Example An op amp circuit analysis lecture 3/23 Jim Stiles The Univ.
2/21/2011 Example An op amp circuit analysis lecture 10/23 Jim Stiles The Univ. of Kansas Dept. of EECS There are seven device equations Finally, we add in the device equations. Note in this circuit there are three resistors, a current source, and an op-amp From Ohm’s Law we know: 1
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