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[4, 2007] 

Journal of Electrical Engineering, Vol 58, 4 (2007) 224-227

GAIN- AND OFFSET-COMPENSATED TECHNIQUE FOR SC LEAPFROG LADDER FILTER

Nikolay A. Radev - Kantcho P. Ivanov

   A combined approach for reducing the effects of opamps finite gain and offset voltage in SC leapfrog ladder filters is proposed. First, the conventional integrators in the filters are replaced with gain- and offset- compensated integrators. Next, the finite gain effect is further reduced by modifying the values of some appropriately chosen capacitances.

Keywords: SC filters, gain-compensation, offset-compensation


[full-paper]


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