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A low-noise chopper-stabilized differential switched-capacitor filtering technique

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3 Author(s)

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.

Published in:

IEEE Journal of Solid-State Circuits  (Volume:16 ,  Issue: 6 )