Design of digital OTAs with operation down to 0.3 V and nW power for direct harvesting
In this paper, passive-less fully-digital operational transconductance amplifiers (DIGOTA) for
energy-and area-constrained systems are modeled and analyzed from a design viewpoint …
energy-and area-constrained systems are modeled and analyzed from a design viewpoint …
Fully Digital Rail-to-Rail OTA With Sub-1000-μm² Area, 250-mV Minimum Supply, and nW Power at 150-pF Load in 180 nm
A fully digital operational transconductance amplifier (DIGOTA) architecture for tightly energy-
constrained low-cost systems is presented. A 180-nm DIGOTA testchip exhibits an area …
constrained low-cost systems is presented. A 180-nm DIGOTA testchip exhibits an area …
A robust local positive feedback based performance enhancement strategy for non-recycling folded cascode OTA
Y Wang, Q Zhang, SS Yu, X Zhao… - IEEE Transactions on …, 2020 - ieeexplore.ieee.org
In this study, a local positive feedback technique is proposed to enhance the performance of
the folded cascode (FC) operational transconductance amplifier (OTA) when working in its …
the folded cascode (FC) operational transconductance amplifier (OTA) when working in its …
Power-efficient single-stage class-AB OTA based on non-linear nested current mirrors
J Beloso-Legarra, A Carlos… - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
A novel approach to design low-power area-efficient rail-to-rail output single-stage class-AB
operational transconductance amplifiers (OTAs) with enhanced large-and small-signal …
operational transconductance amplifiers (OTAs) with enhanced large-and small-signal …
Gain-boosted super class AB OTAs based on nested local feedback
J Beloso-Legarra, CA de la Cruz-Blas… - … on Circuits and …, 2021 - ieeexplore.ieee.org
A new approach to design super class AB operational transconductance amplifiers (OTAs)
with enhanced large-signal and small-signal performance is presented. It is based on …
with enhanced large-signal and small-signal performance is presented. It is based on …
A review of techniques to enhance an amplifier's performance using resistive local common mode feedback
A review of some of the most common applications of the resistive local common mode
feedback technique to enhance amplifier's performance is presented. It is shown that this …
feedback technique to enhance amplifier's performance is presented. It is shown that this …
Sizing CMOS amplifiers by PSO and MOL to improve DC operating point conditions
E Tlelo-Cuautle, MA Valencia-Ponce, LG de la Fraga - Electronics, 2020 - mdpi.com
The sizes of the metal-oxide-semiconductor (MOS) transistors in an operational amplifier
must guarantee strong direct current operating point (DCOP) conditions. This paper shows …
must guarantee strong direct current operating point (DCOP) conditions. This paper shows …
Implementation of a multipath fully differential OTA in 0.18-μm CMOS Process
This brief implements a highly efficient fully differential transconductance amplifier, based on
several input-to-output paths. Some traditional techniques, such as positive feedback …
several input-to-output paths. Some traditional techniques, such as positive feedback …
An ultra-low-power bulk-driven subthreshold super class-AB rail-to-rail CMOS OTA with enhanced small and large signal performance suitable for large capacitive …
S Ghosh, V Bhadauria - Microelectronics Journal, 2021 - Elsevier
This paper introduces a power-efficient super class-AB bulk-driven (BD) operational
transconductance amplifier (OTA) in the subthreshold region suitable for driving a high …
transconductance amplifier (OTA) in the subthreshold region suitable for driving a high …
98-dB gain class-AB OTA with 100 pF load capacitor in 180-nm digital CMOS process
In this paper, a new two-stage class-AB operational trans-conductance amplifier (OTA) is
proposed. Using active loads in the first stage and improved recycling structure, the effective …
proposed. Using active loads in the first stage and improved recycling structure, the effective …