Gain stage with operational amplifier and switched capacitor resistor equivalent circuit

作者: Gideon Amir , Yusuf Haque , Roubik Gregorian

DOI:

关键词: VoltageSwitched capacitorOperational amplifierMOSFETResistorEquivalent circuitEngineeringGain stageField-effect transistorElectronic engineeringElectrical engineering

摘要: An operational amplifier gain stage incorporating switched capacitor resistor equivalent circuits uses a delayed clock reference signal (φ D , φ ) to eliminate the effects of spurious error voltages (E s generated when utilizing metal oxide silicon field effect transistors as switches (12, 15, 21, 23, 25). The single remaining MOSFET switch (21) which will contribute voltage component output is designed in such manner minimize during operation switch. A dummy (31) utilized further minimise by this

参考文章(3)
Gary L. Baldwin, James L. McCreary, Offset correction in operational amplifiers ,(1979)
Dwarakanath Mirmira Ramarao, Marsh Douglas George, VERSTAERKER MIT OFFSET-SPANNUNGSKOMPENSATION ,(1981)