Monolithic CMOS compandors based on Sigma - Delta oversampling

The CMOS compandor circuit presented is based on sigma-delta ( Sigma - Delta ) oversampling. The Sigma - Delta modulator converts an analog signal into a binary sequence, so that it can multiply another signal by on-and-off switching. Continuous-time CMOS multipliers, which are difficult to implement with high linearity, are not required in such a compandor configuration. Simulation results of a switched-capacitor implementation of the oversampled compandor are presented.<
>