Title :
Sensitivity aspects related to the switch timing of multirate switched-capacitor circuits
Author :
Martins, Rui P. ; Franca, José E.
Author_Institution :
Dept. of Electr. & Comput. Eng., Inst. Superior Tecnico, Lisboa, Portugal
Abstract :
The authors evaluate the operation of multirate switched-capacitor circuits under non-ideal characteristics of the switching waveform generators. Analytical expressions are derived showing the influence of switch-timing errors in the frequency response of both finite impulse response and infinite impulse response circuits. In order to reduce such errors, efficient digital switching waveform generators are discussed. The results obtained by computer simulation and by experimental characterization of integrated circuit prototypes demonstrate the validity of the theoretical analysis
Keywords :
frequency response; sensitivity analysis; switched capacitor networks; FIR circuits; IIR circuits; computer simulation; digital switching waveform generators; finite impulse response; frequency response; infinite impulse response; integrated circuit prototypes; multirate SC circuits; switch timing; switch-timing errors; switched-capacitor circuits; CMOS technology; Charge transfer; Finite impulse response filter; Frequency; Sampling methods; Signal generators; Switched capacitor circuits; Switches; Switching circuits; Timing;
Conference_Titel :
Circuits and Systems, 1991. Conference Proceedings, China., 1991 International Conference on
Conference_Location :
Shenzhen
DOI :
10.1109/CICCAS.1991.184323
