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Offset and clock-feedthrough compensated switched-capacitor integrators

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5 Author(s)
Robert, J. ; Ecole Polytechnique Fédérale, Laboratoire d''Electronique Générale, Lausanne, Switzerland ; Temes, G.C. ; Krummenacher, F. ; Valencic, V.
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Switched-capacitor integrator circuits are described, in which the effects of amplifier offset and clock feedthrough are both compensated for using a sampled-data feedback path. Preliminary experimental results, obtained on circuits fabricated using a low-voltage CMOS technology, indicate 40¿60 dB reduction in these effects.

Published in:

Electronics Letters  (Volume:21 ,  Issue: 20 )