A CBSC second-order sigma-delta modulator in 3μm LTPS-TFT technology

Abstract

A second-order sigma-delta modulator has been implemented in 3μm low-temperature poly-silicon thin-film transistor (LTPS-TFT) technology. Since the LTPS-TFT operational amplifier has a low open-loop gain, a large offset voltage, and the poor linearity, the proposed comparator-based switched-capacitor integrator with correlated double sampling is adopted in… (More)

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