Synthesis of optimal OTA-C filter structures with arbitrary transmission zeros via MINLP

Author

Kwan, Hing-Kit ; Cheung, Chung-Man ; Lei, Chi-Un ; Wong, Ngai ; Ho, Ka-Leung

Author_Institution

Dept. of Electr. & Electron. Eng., Univ. of Hong Kong, Hong Kong

fYear

2008

fDate

Nov. 30 2008-Dec. 3 2008

Firstpage

944

Lastpage

947

Abstract

We present a design methodology for the globally optimal synthesis of multiple loop feedback operational transconductance amplifier-capacitor (OTA-C) filters. Transmission zero realization via input distribution of OTA network is adopted. A generic topology of OTA-C filter is optimized using a two-stage mixed integer nonlinear programming (MINLP), with circuit complexity and circuit sensitivity as the objective functions. A numerical example shows the efficacy of the proposed approach.

Keywords

capacitors; filters; integer programming; nonlinear programming; operational amplifiers; MINLP; OTA network; arbitrary transmission zeros; circuit complexity; circuit sensitivity; design methodology; generic topology; globally optimal synthesis; input distribution; mixed integer nonlinear programming; multiple loop feedback operational transconductance amplifier-capacitor; objective functions; optimal OTA-C filter structures; transmission zero realization; Circuit synthesis; Circuit topology; Design methodology; Feedback loop; Filtering theory; Filters; Network synthesis; Network topology; Operational amplifiers; Transconductance;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 2008. APCCAS 2008. IEEE Asia Pacific Conference on

Conference_Location

Macao

Print_ISBN

978-1-4244-2341-5

Electronic_ISBN

978-1-4244-2342-2

Type

conf

DOI

10.1109/APCCAS.2008.4746179

Filename

4746179