Title :
A novel square root domain lossless integrator and its application to KHN biquad filter design
Author :
Olmez, Sinem ; Cam, Ugur
Author_Institution :
Dept. of Electr. & Electron. Eng., Yasar Univ., Izmir, Turkey
Abstract :
In this paper, a novel square root domain lossless integrator and its application to KHN (Kerwin-Huelsman-Newcomb) biquad are proposed. The presented lossless integrator based on quadratic characteristics of MOS transistor was designed by using state space method. It consists of a geometric mean circuit, a current mirror and a capacitor. The scaling factor of the integrator is electronically tuneable by an external bias current. The KHN biquad consists of two lossless integrator blocks and a summer circuit. The summer circuit is developed by using linear transconductors. KHN biquad filter was simulated by using SPICE simulation program, simulation results are good in agreement with the theoretical analysis.
Keywords :
MOSFET; SPICE; biquadratic filters; KHN biquad filter; Kerwin-Huelsman-Newcomb biquad filter; MOS transistor; SPICE simulation program; capacitor; current mirror; geometric mean circuit; linear transconductors; quadratic characteristics; scaling factor; square root domain lossless integrator; state space method; summer circuit; Adders; Analytical models; Circuit simulation; Filters; MOS capacitors; MOSFETs; Mirrors; State-space methods; Transconductors; Tunable circuits and devices;
Conference_Titel :
Electrical and Electronics Engineering, 2009. ELECO 2009. International Conference on
Conference_Location :
Bursa
Print_ISBN :
978-1-4244-5106-7
Electronic_ISBN :
978-9944-89-818-8
