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 …

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 …

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 0.25-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 …

An enhanced input differential pair for low-voltage bulk-driven amplifiers

M Akbari, SM Hussein, Y Hashim… - IEEE Transactions on …, 2021 - ieeexplore.ieee.org
This article presents a low-voltage high-transconductance input differential pair for bulk-
driven amplifiers. The proposed structure employs two bulk-driven flipped voltage follower …

A 0.3-V 8.5-μ a bulk-driven OTA

A Ballo, ADD Grasso, S Pennisi… - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
A bulk-driven operational transconductance amplifier (OTA) suitable for ultralow-power and
ultralow-voltage applications is described. The amplifier exploits local positive feedback in …

A 0.3 V, rail-to-rail, ultralow-power, non-tailed, body-driven, sub-threshold amplifier

F Centurelli, R Della Sala, G Scotti, A Trifiletti - Applied Sciences, 2021 - mdpi.com
A novel, inverter-based, fully differential, body-driven, rail-to-rail, input stage topology is
proposed in this paper. The input stage exploits a replica bias control loop to set the …

A novel OTA architecture exploiting current gain stages to boost bandwidth and slew-rate

F Centurelli, R Della Sala, P Monsurrò, G Scotti… - Electronics, 2021 - mdpi.com
A novel architecture and design approach which make it possible to boost the bandwidth
and slew-rate performance of operational transconductance amplifiers (OTAs) are proposed …

A 0.4​ V, body-driven, fully differential, tail-less OTA based on current push-pull

HF Baghtash - Microelectronics Journal, 2020 - Elsevier
A tail-less, fully differential trans-conductance amplifier is presented in this paper. The
proposed structure arranges the current push-pulls as the core amplifier blocks in an …

A 0.25-V calibration-less inverter-based OTA for low-frequency Gm-C applications

RAS Braga, LHC Ferreira, GD Coletta, OO Dutra - Microelectronics Journal, 2019 - Elsevier
This paper presents a calibration-less inverter-based operational transconductance
amplifier (OTA) built with intrinsically matched CMOS inverters, therefore, dispensing any …