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In Chapter 10 of Art Kay's book "Operational Amplifier Noise", he gives a SPICE circuit (pp.179) that can be used to generate the noise gain, AOL, and current-to-voltage gain.

Could anyone explain to me why put the source VG1 in the way shown in the picture, and why not at the non-inverting input side.

And, also, the book writes "Note that the 1-TH inductor is used to break the feedback loop from an AC perspective but allow for a DC connection. The 1-TF capacitor allows the signal source VG1 for AC coupling into the loop at extremely low frequencies." Could anyone givesgive more details about these two lines.?

I would greatly appreciate it if you kindly give me some references.

Thank you very much.

Spice circuit to find AOL and noise gain

In Chapter 10 of Art Kay's book "Operational Amplifier Noise", he gives a SPICE circuit (pp.179) that can be used to generate the noise gain, AOL, and current-to-voltage gain.

Could anyone explain to me why put the source VG1 in the way shown in the picture, and why not at non-inverting input side.

And, also, the book writes "Note that the 1-TH inductor is used to break the feedback loop from an AC perspective but allow for a DC connection. The 1-TF capacitor allows the signal source VG1 for AC coupling into the loop at extremely low frequencies." Could anyone gives more details about these two lines.

I would greatly appreciate it if you kindly give me some references.

Thank you very much.

Spice circuit to find AOL and noise gain

In Chapter 10 of Art Kay's book "Operational Amplifier Noise", he gives a SPICE circuit (pp.179) that can be used to generate the noise gain, AOL, and current-to-voltage gain.

Could anyone explain to me why put the source VG1 in the way shown in the picture, and why not at the non-inverting input side.

And, also, the book writes "Note that the 1-TH inductor is used to break the feedback loop from an AC perspective but allow for a DC connection. The 1-TF capacitor allows the signal source VG1 for AC coupling into the loop at extremely low frequencies." Could anyone give more details about these two lines?

I would greatly appreciate it if you kindly give me some references.

Thank you very much.

Spice circuit to find AOL and noise gain

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SPICE circuit to find AOL and noise gain of Transimpedance amplifier

In Chapter 10 of Art Kay's book "Operational Amplifier Noise", he gives a SPICE circuit (pp.179) that can be used to generate the noise gain, AOL, and current-to-voltage gain.

Could anyone explain to me why put the source VG1 in the way shown in the picture, and why not at non-inverting input side.

And, also, the book writes "Note that the 1-TH inductor is used to break the feedback loop from an AC perspective but allow for a DC connection. The 1-TF capacitor allows the signal source VG1 for AC coupling into the loop at extremely low frequencies." Could anyone gives more details about these two lines.

I would greatly appreciate it if you kindly give me some references.

Thank you very much.

Spice circuit to find AOL and noise gain