Title :
The bilinear-mapping SC differentiators and their applications in the design of biquad and ladder filters
Author :
Yu, Tsai-Chung ; Hsu, Ching-Hwie ; Wu, Chung-Yu
Author_Institution :
Electron. Res. & Service Organ., Ind. Technol. Res. Inst., Hsin-Chu, Taiwan
Abstract :
Bilinear-mapping (BIM) switched-capacitor (SC) differentiators are proposed and analyzed. Applications to the design of SC biquads and high-pass ladder filters are demonstrated. The design methodology is quite simple and direct. It is shown that the termination error and the Q-value warping effect in LDD (lossless discrete differentiator) filters can be completely eliminated in the BIM SC-differentiator-based filters. Moreover, the filters have the advantages of compact structure, full stray insensitivity, and accurate response at low clock frequency
Keywords :
active filters; active networks; differentiating circuits; high-pass filters; ladder networks; network synthesis; switched capacitor filters; switched capacitor networks; Q-value warping effect; SC biquads; bilinear-mapping SC differentiators; compact structure; design methodology; ladder filters; stray insensitivity; switched-capacitor; termination error; Circuits; Clocks; Design methodology; Electronics industry; Filters; Frequency response; Industrial electronics; Prototypes; Tellurium; Transfer functions;
Conference_Titel :
Circuits and Systems, 1990., IEEE International Symposium on
Conference_Location :
New Orleans, LA
DOI :
10.1109/ISCAS.1990.112280
