Title :
Realization of IIR and FIR filters using switched-current differentiators
Author :
Liu, Shen-Iuan ; Chen, Chih-Hsien ; Tsao, Hen-Wai ; Wu, Jingshown
Author_Institution :
Nat. Taiwan Inst. of Technol., Taipei, Taiwan
Abstract :
A new design method for IIR and FIR filters is proposed. The realization of these circuits requires only current mirrors and analog switches. A second-order IIR bandpass filter and a linear-phase 4th-order lowpass FIR filter are designed and simulated. The simulation results agree well with the theoretical analysis. The results will be useful for the realizations of fully integrated FIR and IIR filters
Keywords :
differentiating circuits; digital filters; switched networks; FIR filters; IIR filters; analog switches; bandpass filter; current mirrors; linear-phase filters; low-pass filter; switched-current differentiators; Circuit simulation; Delay; Digital circuits; Finite impulse response filter; IIR filters; Mirrors; Operational amplifiers; Switched capacitor circuits; Switches; Switching circuits;
Conference_Titel :
Circuits and Systems, 1991. Conference Proceedings, China., 1991 International Conference on
Conference_Location :
Shenzhen
DOI :
10.1109/CICCAS.1991.184451
