Title :
A switched-capacitor building block for analog FIR filters
Author_Institution :
Dept. of Electr. Eng., Rhode Island Univ., Kingston, RI, USA
Abstract :
A stray-insensitive switched-capacitor (SC) building block is presented that permits the realization of arbitrary analog finite-impulse-response (FIR) filters. With one amplifier per (n-2)nd-order cell (where n denotes the number of phases), the proposed cellular approach is feasible for the implementation of at least moderate-order FIR systems. Since the amplifiers in the presented SC cells are time-multiplexed, the upper frequency limit of these sampled data analog circuits will be approximately a factor n/2 smaller than the maximum operating frequency of common two-phase SC networks
Keywords :
active filters; analogue circuits; switched capacitor filters; SC building block; active filters; analog FIR filters; finite-impulse-response; sampled data analog circuits; stray-insensitive; switched-capacitor; time multiplexed amplifiers; Adders; Capacitors; Circuits; Clocks; Costs; Delay lines; Digital filters; Feedback; Finite impulse response filter; Transversal filters;
Conference_Titel :
Circuits and Systems, 1989., IEEE International Symposium on
Conference_Location :
Portland, OR
DOI :
10.1109/ISCAS.1989.100629
