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Inverting linear amplifier. Encyclopedia of radio electronics and electrical engineering

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Encyclopedia of radio electronics and electrical engineering / Transistor power amplifiers

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An inverting linear amplifier avoids clipping of the input signal and is stable without additional correction if the DC gain is equal to or greater than 10. The slew rate of the output signal of the amplifier in such a connection is at least 4 V / µs (in the absence of an external correction capacitor). The DC gain is determined by the ratio of the resistances of the OOS circuit resistors R3 and R2 (K=R3/R2), the AC gain is determined by the resistors R3 and RI (Ku=R3/R1).

Inverting linear amplifier

What has been said above regarding the choice of the resistance of the resistors R1 - R3, the capacitance of the capacitor C4, as well as the capacitors at the input of the amplifier (C1) and in the power circuit C2, fully applies to the case of using the microcircuit as an inverting amplifier.

It should be noted that with this inclusion of the microcircuit, it is impossible to use only one transistor of the differential stage to reduce noise.

See other articles Section Transistor power amplifiers.

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