FIELD: physics.
SUBSTANCE: invention relates to means of limiting the spectrum of a signal source, for example, during its further processing by analogue-to-digital converters of various modifications. Band pass ARC-filter is made on two operational amplifiers with increase of pole frequency and independent adjustment of main parameters, containing also resistors and capacitors connected so that adjustment of pole frequency, attenuation of pole, as well as adjustment of transmission coefficient in pass band is provided by changing resistances corresponding resistors of filter circuit.
EFFECT: high frequency of the pole, which provides independent adjustment of three main parameters of the amplitude-frequency characteristic.
3 cl, 9 dwg
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