M. Yavari, H. Zare-Hoseini, M. Farazian, O. Shoaei
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A new compensation technique for two-stage CMOS operational transconductance amplifiers
This paper presents a new compensation method for fully differential two-stage CMOS operational transconductance amplifiers (OTAs). It employs a hybrid cascode compensation scheme, merged Ahuja and improved Ahuja style compensations, for fast settling. A design procedure for minimum settling time of the proposed compensation technique for a two-stage class A/AB OTA is described. To demonstrate the usefulness of it, three design examples are considered.