Abstract
A new CMOS realization of the differential difference amplifier (DDA) circuit is proposed. The DDA circuit is realized using a wide input range differential difference transconductor (DDT) and a complementary folded cascode (CFC) gain stage. The DDA circuit is used to realize a MOS-C oscillator suitable for VLSI with a simple circuit to control the amplitude of oscillation. PSpice simulation results for the proposed DDA circuit and the DDA based MOS-C oscillator are also given.
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