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DG-MOSFET Cascode Self Biasing Ota and LPF Performance Analysis Based On Gain, Bandwidth

Shikha Soni

Abstract


In today’s modern electronic era, analog integrated circuits have been widely adopted for high frequency applications. Operational transconductance amplifiers (OTAs) are considered to be promising as the building blocks for filters, oscillators at high frequencies. OTA-C filters are one of the most widely used continuous time filters because they are fast, enable low-power operation and tuning of the filter characteristics at higher frequencies. Double gate MOSFET is new device which shows improved performance and have ability to tackle problems of nanometer era. Double gate MOSFET as four terminal device is very suitable to design analog circuits. In independent driven mode, back gate is used to provide analog tunability of circuits along with gain in terms of area and power dissipation. In the present paper, the study of double gate MOSFETs and its suitability to designing high gain and wide bandwidth OTA. The proposed DG-MOSFET based MOSFET based OTA is used to implement second order low pass filter.

Keywords: DG-MOSFET, MOSFET, LPF (low pass filter), OTA-C (operational transconductance amplifier)
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DOI: https://doi.org/10.37628/jvdt.v2i1.265

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