An integrable 60-Hz notch filter

Author

Casper, Bryan K. ; Comer, David J. ; Comer, Donald T.

Author_Institution

Intel Corp., Hillsboro, OR, USA

Volume

46

Issue

1

fYear

1999

fDate

1/1/1999 12:00:00 AM

Firstpage

74

Lastpage

77

Abstract

Previous configurations of continuous-time 60-Hz notch filters were difficult to integrate on a silicon chip because of the large component values required. A new method based on first-order all-pass networks has been introduced that lends itself more to integration. These networks use time constant multiplication circuitry to achieve large time constants using resistors and capacitors that can be integrated. With this new configuration, a 60-Hz notch filter with notch attenuation exceeding -60 dB can be implemented on a silicon chip

Keywords

analogue integrated circuits; continuous time filters; notch filters; sensitivity analysis; 60 Hz; Si; Si chip; active filters; continuous-time notch filters; first-order all-pass networks; integrable notch filter; notch attenuation; time constant multiplication circuitry; Active filters; Attenuation; Band pass filters; Capacitors; Frequency; Integrated circuit noise; Passband; Q factor; Resistors; Transfer functions;

fLanguage

English

Journal_Title

Circuits and Systems II: Analog and Digital Signal Processing, IEEE Transactions on

Publisher

ieee

ISSN

1057-7130

Type

jour

DOI

10.1109/82.749101

Filename

749101