Title :
An integrable 60-Hz notch filter
Author :
Casper, Bryan K. ; Comer, David J. ; Comer, Donald T.
Author_Institution :
Intel Corp., Hillsboro, OR, USA
fDate :
1/1/1999 12:00:00 AM
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;
Journal_Title :
Circuits and Systems II: Analog and Digital Signal Processing, IEEE Transactions on
