This brief presents the design and simulation of an area-efficient single-stage OTA. The amplifier is based on a PMOS differential pair with a cross-coupled NMOS load to increase its transconductance. The implemented OTA, supplied at 1.2 V and a quiescent current of 2 μA, exhibits a gain bandwidth product (GBW) of 0.051 MHz, a differential gain and CMRR, equal to 51.06 dB and 94.28 dB, respectively. The results are validated through post-layout simulations. The amplifier occupies only 0.287×10-3mm2 area and outperforms stable features across all corners as well as in the temperature range from 125°C down to -50°C.
An Area efficient OTA in Standard 28nm CMOS Technology for Aerospace Applications
Nisar K.;Privitera M.
Primo
;Ballo A.;Grasso A. D.
2025-01-01
Abstract
This brief presents the design and simulation of an area-efficient single-stage OTA. The amplifier is based on a PMOS differential pair with a cross-coupled NMOS load to increase its transconductance. The implemented OTA, supplied at 1.2 V and a quiescent current of 2 μA, exhibits a gain bandwidth product (GBW) of 0.051 MHz, a differential gain and CMRR, equal to 51.06 dB and 94.28 dB, respectively. The results are validated through post-layout simulations. The amplifier occupies only 0.287×10-3mm2 area and outperforms stable features across all corners as well as in the temperature range from 125°C down to -50°C.File in questo prodotto:
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