Title :
A systematic approach to the synthesis of square-root domain systems
Author :
López-Martín, Antonio J. ; Carlosena, Alfonso
Author_Institution :
Dept. Ingenieria Electrica y Electronica, Univ. Publica de Navarra, Pamplona, Spain
Abstract :
A design method of companding systems based on the quasi-quadratic MOST large-signal characteristics in strong inversion is presented. Applying a new synthesis approach, a generic current-mode square-root-domain system is derived from its corresponding Gm-C prototype by a component-to-component substitution. Practical nonlinear blocks for implementing the required nonlinear functions are proposed, and subsequently, a square-root-domain biquad is thoroughly studied
Keywords :
CMOS analogue integrated circuits; biquadratic filters; compandors; current-mode circuits; integrated circuit design; nonlinear network synthesis; CMOS circuits; Gm-C prototype; MOST large-signal characteristics; companding systems; component-to-component substitution; current-mode square-root-domain system; design method; nonlinear blocks; nonlinear functions; quasi-quadratic MOST characteristics; square-root domain system synthesis; square-root-domain biquad; strong inversion; CMOS technology; Circuit synthesis; Design methodology; Electronic mail; Filters; Optimal control; Oscillators; Prototypes; Topology; Very large scale integration;
Conference_Titel :
Circuits and Systems, 1999. ISCAS '99. Proceedings of the 1999 IEEE International Symposium on
Conference_Location :
Orlando, FL
Print_ISBN :
0-7803-5471-0
DOI :
10.1109/ISCAS.1999.777570
