Radu Gabriel BOZOMITU, Vlad CEHAN, Liviu GORA┼×
Analysis of KHN Biquad

Abstract.
In this paper is presented a method of analyzing the 4th order KHN biquad made by three topologies of integrators: OPAMP, OTA and ORA. There are determined the parameters which describe the biquad network, for a maximal frequency imposed as a design parameter, so that the analysed structure is stable. There are determined the 3-dB bandwidth and the quality factor using a numerical method, for the obtained parameters.

Keywords: OPAMP, OTA, ORA, Nyquist, Stability.