A compact 0.3-V class AB bulk-driven OTA

T Kulej, F Khateb - IEEE Transactions on Very Large Scale …, 2019 - ieeexplore.ieee.org
In this article, a new solution for an ultralow-voltage (ULV) ultralow-power (ULP) operational
transconductance amplifier (OTA) is presented. Thanks to the combination of a low-voltage …

0.7-V three-stage class-AB CMOS operational transconductance amplifier

E Cabrera-Bernal, S Pennisi, AD Grasso… - … on Circuits and …, 2016 - ieeexplore.ieee.org
A simple high-performance architecture for bulk-driven operational transconductance
amplifiers (OTAs) is presented. The solution, suitable for operation under sub 1-V single …

Design of digital OTAs with operation down to 0.3 V and nW power for direct harvesting

P Toledo, P Crovetti, O Aiello… - IEEE Transactions on …, 2021 - ieeexplore.ieee.org
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 …

A 0.3-V 98-dB Rail-to-Rail OTA in m CMOS

T Kulej, F Khateb - IEEE Access, 2020 - ieeexplore.ieee.org
A new solution for an ultra-low-voltage, ultra-low-power operational transconductance
amplifier (OTA) is presented in the paper. The design exploits a three-stage structure with a …

An ultra-low-voltage CMOS process-insensitive self-biased OTA with rail-to-rail input range

O Abdelfattah, GW Roberts, I Shih… - IEEE Transactions on …, 2015 - ieeexplore.ieee.org
An operational-transconductance-amplifier (OTA) design for ultra-low voltage ultra-low
power applications is proposed. The input stage of the proposed OTA utilizes a bulk-driven …

Design and implementation of sub 0.5‐V OTAs in 0.18‐μm CMOS

T Kulej, F Khateb - International Journal of Circuit Theory and …, 2018 - Wiley Online Library
A family of bulk‐driven CMOS operational transconductance amplifiers (OTAs) has been
designed for extremely low supply voltages (0.3‐0.5 V). Three OTA design schemes with …

A 0.25-V rail-to-rail three-stage OTA with an enhanced DC gain

KC Woo, BD Yang - IEEE Transactions on Circuits and Systems …, 2019 - ieeexplore.ieee.org
This brief proposes a 0.25 V rail-to-rail three stage OTA. The proposed OTA improves a DC
gain by inserting an NMOS gate-driven amplifier into the conventional bulk-driven OTA. In …

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

P Toledo, P Crovetti, O Aiello… - IEEE Solid-State Circuits …, 2020 - ieeexplore.ieee.org
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 …

Inverter-Based Subthreshold Amplifier Techniques and Their Application in 0.3-V -Modulators

L Lv, X Zhou, Z Qiao, Q Li - IEEE Journal of Solid-State Circuits, 2019 - ieeexplore.ieee.org
Subthreshold amplifiers suffer from the limited voltage headroom which leaves little space
for conventional analog techniques to enhance performance and efficiency. This paper …

A 0.3-V high linear rail-to-rail bulk-driven OTA in 0.13 μm CMOS

T Kulej, F Khateb, D Arbet… - IEEE Transactions on …, 2022 - ieeexplore.ieee.org
A new solution for an ultra-low-voltage (ULV), linear operational transconductance amplifier
(OTA) is presented in this brief. The circuit is based on a non-tailed, classAB differential …