Simple implementation of sampled-data filters using current multipliers, switches and capacitors

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Abstract
An approach is discussed for a simple implementation of sampled-data filters. The implementation uses m.o.s. current multipliers, switches and capacitors and is useful for the design of integrated m.o.s. analogue filters. Compared with other approaches, the filters designed with this method require smaller area, use no operational amplifiers and have no consumption of d.c. static power. An example is presented showing good agreement between experimental and theoretical results.

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