Continuous-Time Current-Mode Current Mirror Band Pass Filters with Improved Leap-Frog Structure

Author

Chunyue Wang ; Rong Zhao

Author_Institution

Inst. of Telecommun., Univ. Changchun, Changchun

Volume

1

fYear

2008

fDate

27-30 May 2008

Firstpage

146

Lastpage

148

Abstract

In this paper, the characteristics of the basic current mirror and the continuous-time current-mode current mirror integrator are analyzed. Using the two unlossy loop integrators and the basic current mirrors, the biquad circuit block is implemented. The signal flow graph (SFG) and the improved leap-frog (ILF) structure are simple to implement the six-order band pass filters. Exploring PSPICE9.1 simulation in 0.18 mum CMOS technology, Transistor lever circuit is carried out and results show that the proposed circuit is feasible. The design method of biquad block circuits is apt to realize the high-order band-pass filter and elliptic function filter.

Keywords

CMOS integrated circuits; SPICE; band-pass filters; continuous time filters; current mirrors; flow graphs; CMOS technology; PSPICE9.1; Transistor lever circuit; biquad circuit block; continuous-time current-mode current mirror band pass filters; elliptic function filter; high-order band-pass filter; leap-frog structure; signal flow graph; six-order band pass filters; Band pass filters; CMOS technology; Capacitance; Circuit simulation; Circuits and systems; Design methodology; Flow graphs; MOSFETs; Mirrors; Signal processing; Integrator; Leap-frog structure; biquad circuit; current mirror; filter;

fLanguage

English

Publisher

ieee

Conference_Titel

Image and Signal Processing, 2008. CISP '08. Congress on

Conference_Location

Sanya, Hainan

Print_ISBN

978-0-7695-3119-9

Type

conf

DOI

10.1109/CISP.2008.182

Filename

4566136