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Stray capacitance eliminating transformations for switched capacitor circuits
Author(s) -
Hasler Martin,
Saghafi Morad
Publication year - 1983
Publication title -
international journal of circuit theory and applications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.364
H-Index - 52
eISSN - 1097-007X
pISSN - 0098-9886
DOI - 10.1002/cta.4490110307
Subject(s) - capacitor , capacitance , switched capacitor , electronic circuit , parasitic capacitance , amplifier , electrical engineering , topology (electrical circuits) , mathematics , control theory (sociology) , engineering , electronic engineering , physics , computer science , voltage , cmos , control (management) , electrode , quantum mechanics , artificial intelligence
Transformations are given that eliminate the influence of part or all of the stray capacitances to ground in a switched capacitor circuit, while leaving the transfer functions and, conditionally, their sensitivities to nominal capacitor ratios invariant. the transformations increase the number of operational amplifiers to the minimum that is required, as we prove, for stray capacitance insensitive circuits. the number of capacitors usually also increases, giving rise to constraint equations.