Title :
Influence of op-amp nonidealities and switch-on resistances on SC integrator
Author :
Wolski, Wlodzimierz J.
Author_Institution :
Inst. of Telecommun. & Acoust., Tech. Univ. of Wroclaw, Poland
Abstract :
An analysis of the stray-insensitive noninverting SC (switched-capacitor) integrator shows that the slewing time of the op-amp and the time constant connected with switch-on resistances determine the maximal sampling frequency of the network. The degradation of the frequency characteristics, if the sampling frequency is below the shown limit, is caused by switch-on resistances as well as by the finite gain-bandwidth product of the op-amp
Keywords :
integrating circuits; switched capacitor networks; finite gain-bandwidth product; frequency characteristics degradation; maximal sampling frequency; op-amp nonidealities; slewing time; stray insensitive noninverting SC integrator; switch-on resistances; switched capacitor integrator; time constant; Capacitors; Cause effect analysis; Degradation; Equivalent circuits; Frequency; Operational amplifiers; Sampling methods; Switches; Telecommunication switching; Voltage;
Conference_Titel :
Circuits and Systems, 1988., IEEE International Symposium on
Conference_Location :
Espoo
DOI :
10.1109/ISCAS.1988.15332
