论文信息 - Very low-voltage, low-power and fast-settling OTA for switched-capacitor applications

Very low-voltage, low-power and fast-settling OTA for switched-capacitor applications

This paper presents a new fully differential operational trans-conductance amplifier (OTA) for very low-voltage and fast settling switched capacitor circuits in digital CMOS technology. The proposed two-stage OTA is a hybrid class A/AB that combines a folded cascode as the first stage with active current mirrors as the second stage. Due to the class AB operation in the second stage, slew limiting only occurs in the first stage resulting in lower power dissipation for switched-capacitor circuits. It also employs the cascode compensation scheme for fast settling.

Omid Shoaei | Mohammad Yavari

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