Title :
High-Order Current-Mode Filters Based on Current Differencing Buffered Amplifiers
Author :
Hwang, Yuh-Shyan ; Huang, Zhao-Hong ; Chen, Jiann-Jong ; Lee, Wen-Ta
Author_Institution :
Nat. Taipei Univ. of Technol., Taipei
Abstract :
In this paper, a current-mode linear transformation (CMLT) filter based on current differencing buffered amplifier (CDBA) is presented. The systematic method is developed to realize CMLT CDBA-based filters efficiently. Based on the proposed design procedures, we can synthesize high-order current-mode filters with CDBAs, grounded resistors and capacitors. A third-order Chebychev lowpass filter is demonstrated. The proposed circuit has been designed with TSMC 0.35 um 2P4M CMOS processes. Simulation results that confirm the theoretical analysis are obtained. Furthermore, the proposed circuits can be extended to high-order filters.
Keywords :
CMOS integrated circuits; amplifiers; buffer circuits; current-mode circuits; low-pass filters; CMOS processes; current differencing buffered amplifiers; current-mode linear transformation; high-order current-mode filters; synthesize high-order current-mode filters; third-order Chebychev lowpass filter; Active filters; Analytical models; Band pass filters; Bandwidth; Circuit synthesis; Design methodology; Nonlinear filters; Prototypes; Resistors; Voltage;
Conference_Titel :
Communications, Circuits and Systems, 2007. ICCCAS 2007. International Conference on
Conference_Location :
Kokura
Print_ISBN :
978-1-4244-1473-4
DOI :
10.1109/ICCCAS.2007.4348215
