Title :
Efficient synthesis of OTA network for linear analog functions
Author :
Ray, Baidya Nath ; Chaudhuri, P. Pal ; Nandi, P.K.
Author_Institution :
Electron. & Tele-Commun. Eng. Dept., Deemed Univ., Agra, India
fDate :
5/1/2002 12:00:00 AM
Abstract :
This paper reports a general methodology and a computer-aided design (CAD) tool (BECAS 1.0) for synthesis of linear analog functions with a network of operational transconductance amplifiers (OTAs). Efficient analog circuits have been synthesized with the CAD tool and reported along with the simulation results. SPICE simulated results of the synthesized circuit match closely with those derived theoretically from the input transfer function. A first-order low-pass filter employing a minimum number of OTAs is used in the design as the basic building block. The number of OTAs employed to realize an analog function can be minimized in the optimization phase of the synthesis algorithm
Keywords :
SPICE; all-pass filters; analogue circuits; band-pass filters; biquadratic filters; circuit CAD; circuit optimisation; high-pass filters; linear network synthesis; low-pass filters; operational amplifiers; BECAS 1.0; CAD tool; OTA network synthesis; SPICE simulated results; all-pass filter; analog circuit synthesis; band-pass filter; biquadratic filter; first-order low-pass filter; general methodology; high-pass filter; input transfer function; linear analog functions; operational transconductance amplifiers; optimization phase; simulation results; Analog circuits; Circuit simulation; Circuit synthesis; Computational modeling; Design automation; Network synthesis; Operational amplifiers; SPICE; Transconductance; Transfer functions;
Journal_Title :
Computer-Aided Design of Integrated Circuits and Systems, IEEE Transactions on
