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Answer by Verbal Kint for Inverting OpAmp with voltage divider in feedback loop
For this type of circuit, you can apply the fast analytical circuits techniques or FACTs. These techniques will lead you straight to the answer expressed in a low-entropy format. Reduce the excitation...
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Answer by Sven B for Inverting OpAmp with voltage divider in feedback loop
To find the lower cutoff frequency and passband gain, you can use Miller's theorem to separate the \$100nF\$ into two capacitances to ground. simulate this circuit – Schematic created using CircuitLab...
View ArticleAnswer by LvW for Inverting OpAmp with voltage divider in feedback loop
No, the shown circuit is not a bandpass. It is a first-order highpass (inverting). Here is the transfer function (R2 and C2 are the feedback elements) $$H(s) = -\frac{R_1C_2s}{1 + s(R_1C_1 + R_2C_2 +...
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Inverting OpAmp with voltage divider in feedback loop
Last week I was looking for a programmable gain amplifier (PGA) with high gains (> 100V/V) and low noise. As far as I know most of the PGA integrated circuits out there are just (inverting)...
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