Title :
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
fDate :
Nov. 30 2008-Dec. 3 2008
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;
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
DOI :
10.1109/APCCAS.2008.4746179
