Title :
A novel MOSFET-C filter realization method using a canonical number of capacitors
Author :
Takagi, Shigetaka ; Ismail, Mohammed ; Fujii, Nobuo ; Brannen, Robert
Author_Institution :
Tokyo Inst. of Technol., Japan
Abstract :
A novel canonical integrator linearizing relationship between voltages and currents of MOSFETs is proposed, and this integrator is applied to continuous-time filter realization. Although this integrator requires two operational amplifiers, a technique to reduce the number of operational amplifiers is also presented. As examples, a biquad filter and a third-order leapfrog filter are simulated by SPICE2. Transient analyses of these filters show quite low harmonic distortions
Keywords :
active filters; circuit analysis computing; harmonics; integrating circuits; SPICE2; active filters; biquad filter; canonical integrator linearizing relationship; continuous-time filter; filter realization; harmonic distortions; operational amplifiers; third-order leapfrog filter; transient analyses; Capacitors; Channel bank filters; Equations; FETs; Harmonic distortion; MOSFET circuits; Operational amplifiers; Resistors; Transient analysis; Voltage;
Conference_Titel :
Circuits and Systems, 1991., IEEE International Sympoisum on
Print_ISBN :
0-7803-0050-5
DOI :
10.1109/ISCAS.1991.176618
