Title :
A fully-programmable analog log-domain filter circuit
Author :
Hematy, Annan ; Roberts, Gordon W.
Author_Institution :
Microelectron. & Comput. Syst. Lab., McGill Univ., Montreal, Que., Canada
Abstract :
This paper describes the design of a general purpose continuous-time analog filter that utilizes log-domain integrator circuits. The coefficients of the filter are digitally programmable and externally controlled using a serial input data stream. Both the poles and the zeros of the filter are adjustable allowing arbitrary filter function implementation. The filter has been designed in a 0.8 micron BiCMOS technology for 3.0 volt operation and a maximum cut-off frequency of 75 MHz. The appropriate V-to-I and I-to-V converters are included for normal voltage operation
Keywords :
BiCMOS analogue integrated circuits; VHF filters; circuit tuning; continuous time filters; integrated circuit design; integrating circuits; poles and zeros; programmable filters; state-space methods; 0.8 micron; 3 V; 75 MHz; BiCMOS technology; I-to-V converters; V-to-I converters; active filter; continuous-time analog filter; digitally programmable coefficients; filter coefficients; log-domain integrator circuits; programmable log-domain filter; serial input data stream; Analog computers; BiCMOS integrated circuits; Circuit synthesis; Costs; Digital filters; Equations; Laboratories; Poles and zeros; Process design; Voltage;
Conference_Titel :
Analog and Mixed IC Design, 1997. Proceedings., 1997 2nd IEEE-CAS Region 8 Workshop on
Conference_Location :
Baveno
Print_ISBN :
0-7803-4240-2
DOI :
10.1109/AMICD.1997.637198
