New implementations of analog FIR and IIR filters exhibiting a potential for wide signal bandwidth and programmability

Author

Winter, Frederick J.

Author_Institution

Suffolk Community Coll., Selden, NY, USA

fYear

1993

fDate

3-6 May 1993

Firstpage

1006

Abstract

New implementations of analog finite impulse response (FIR) and infinite impulse response (IIR) filter topologies devoid of operational amplifiers are presented. The circuits consist of various connections of delay lines and controlled current sources. The design problem associated with these new structures is considered, and is similar to procedures currently in existence for digital realizations of FIR and IIR circuits. Simulation results are presented for a variety of wideband and narrowband designs. The effect of controlled current source finite output conductance is considered along with a means for its compensation. The noise effect associated with the presence of this parasitic element, in addition to that associated with the controlled current sources and the terminating line resistances, is considered

Keywords

FIR filters; IIR filters; constant current sources; delay lines; field effect analogue integrated circuits; programmable filters; analogue FIR filters; analogue IIR filters; compensation; controlled current sources; delay lines; finite output conductance; narrowband designs; parasitic element; programmability; terminating line resistances; wide signal bandwidth; Broadband amplifiers; Circuit noise; Circuit simulation; Circuit topology; Delay lines; Finite impulse response filter; IIR filters; Narrowband; Operational amplifiers; Wideband;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 1993., ISCAS '93, 1993 IEEE International Symposium on

Conference_Location

Chicago, IL

Print_ISBN

0-7803-1281-3

Type

conf

DOI

10.1109/ISCAS.1993.393894

Filename

393894