论文信息 - A fully-differential Regulated Telescopic Operational Transconductance Amplifier

A fully-differential Regulated Telescopic Operational Transconductance Amplifier

transconductance amplifier, Regulated telescopic OTA. Abstract—A fully-differential Regulated Telescopic Operational Transconductance Amplifier (OTA) is proposed. In fact, the conventional OTA is a version of simple telescopic circuit with the gate voltage of the cascode transistor is controlled by a feedback amplifier. To obtain more DC gain, the feedback is applied around the cascode transistor. The proposed OTA is designed in AMS 0.35μm technology and simulated with Advanced Design System. Simulation results show that Regulated Telescopic OTA has 15% improvement in the DC gain compared to that of conventional Telescopic OTA. Moreover, the slew rate and Common Mode Rejection Ratio (CMRR) are also enhanced and the settling time of Regulated Telescopic OTA is reduced by 11% compared to that of conventional Telescopic OTA.

M. Loulou | H. Mnif | H. Daoud | J. Mallek

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