Efficient reduction of electromagnetic interference effects in operational amplifiers |
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| Authors: | Walravens C Van Winckel S Redoute JM Steyaert M |
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| Affiliation: | Dept. of Electr. Eng., KU Leuven; |
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| Abstract: | When subjected to electromagnetic interference, an operational amplifier will generate a DC offset. A thorough comparison between two approaches to reduce this offset is presented. Through mathematical deduction and simulations, it is shown that placing a lowpass filter at the input differential pair is superior to a double differential pair compensation topology |
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