Switched-capacitor cascaded-biquad bandpass filters from MCPER functions

Author

Biey, Mario ; Montecchi, Federico ; Premoli, Amedeo

Author_Institution

Dipartimento di Elettronica, Politecnico di Torino, Italy

Volume

37

Issue

10

fYear

1990

fDate

10/1/1990 12:00:00 AM

Firstpage

1304

Lastpage

1308

Abstract

The multiple-critical-pole equiripple rational (MCPER) transfer functions are compared with the elliptic transfer functions in the design of bandpass switched-capacitor (SC) filters realized as a cascade of noninteracting biquads. Filters designed using the two classes of functions are investigated in terms of passband sensitivity, total capacitance, group delay, dynamic range, and noise. The results show that MCPER transfer functions allow the design of SC filters with superior performance, especially lower passband sensitivity

Keywords

active filters; band-pass filters; switched capacitor filters; transfer functions; MCPER functions; SC filters; bandpass filters; cascaded-biquad; dynamic range; elliptic functions; group delay; multiple-critical-pole equiripple rational; noise; noninteracting biquads; passband sensitivity; total capacitance; transfer functions; Attenuation; Band pass filters; Capacitance; Circuits and systems; Delay; Dynamic range; Filtering theory; Passband; Prototypes; Transfer functions;

fLanguage

English

Journal_Title

Circuits and Systems, IEEE Transactions on

Publisher

ieee

ISSN

0098-4094

Type

jour

DOI

10.1109/31.103227

Filename

103227