Title :
A low-noise chopper-stabilized differential switched-capacitor filtering technique
Author :
Gray, P.R. ; Senderowicz, D. ; Messerschmitt, D.G.
Abstract :
Describes the implementation of a wide dynamic range voiceband switched-capacitor filter using a differential chopper-stabilized configuration. The noise behavior of switched-capacitor filters is discussed qualitatively, and the effects of the chopper stabilization on the noise performance is analyzed. Experimental results from a fifth-order low-pass voiceband prototype are presented.
Keywords :
Active filters; Choppers (circuits); Field effect integrated circuits; Switched capacitor networks; Switched filters; active filters; choppers (circuits); field effect integrated circuits; switched capacitor networks; switched filters; Capacitors; Circuit noise; Dynamic range; Filtering; Filters; Low-frequency noise; Noise reduction; Operational amplifiers; Power supplies; Switches;
Journal_Title :
Solid-State Circuits, IEEE Journal of
DOI :
10.1109/JSSC.1981.1051666
