| 摘要 |
The present invention relates to a circuit configuration ( 10 ) having a feedback operational amplifier (AMP) for amplifying an input signal (Vin) input into the circuit arrangement ( 10 ) and outputting the amplified input signal as an output signal (Vout). In order to be able to change the circuit amplification (Vout/Vin) easily and reliably in the circuit configuration ( 10 ) and simultaneously keep an impairment of the output signal (Vout) caused by noise relatively low, capacitance values (Cb, C) of the coupling path ( 12 ) and of the feedback path ( 14 ) are adjusted simultaneously to one another correlated in a special way.
|
