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

fYear

2007

Firstpage

999

Lastpage

1002

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications, Circuits and Systems, 2007. ICCCAS 2007. International Conference on

Conference_Location

Kokura

Print_ISBN

978-1-4244-1473-4

Type

conf

DOI

10.1109/ICCCAS.2007.4348215

Filename

4348215