A 0.3 V rail-to-rail ultra-low-power OTA with improved bandwidth and slew rate

F Centurelli, R Della Sala, P Monsurrò, G Scotti… - Journal of Low Power …, 2021 - mdpi.com
In this paper, we present a novel operational transconductance amplifier (OTA) topology
based on a dual-path body-driven input stage that exploits a body-driven current mirror …

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 front-end amplifier with tunable bandwidth and high value pseudo resistor for neural recording implants

M Ashayeri, M Yavari - Microelectronics Journal, 2022 - Elsevier
In this paper, a tunable front-end amplifier is presented for neural recording implants. To
program the low cut-off frequency, a bias circuit is used to adjust the value of pseudo …

0.6‐V CMOS cascode OTA with complementary gate‐driven gain‐boosting and forward body bias

D Cellucci, F Centurelli, V Di Stefano… - … Journal of Circuit …, 2020 - Wiley Online Library
An innovative low‐voltage low‐power complementary metal‐oxide‐semiconductor (CMOS)
gain boosting approach is presented. It exploits complementary gate‐driven gain boosting …

Survey on various architectures of preamplifiers for electroencephalogram (EEG) signal acquisition

S Devi, K Guha, KL Baishnab, J Iannacci… - Microsystem …, 2022 - Springer
Modern-day biomedical science and technology have progressed with implantable neural
recording systems. There is a demand for miniaturised devices that can be emplaced into …

Compact CMOS wideband instrumentation amplifiers for multi-frequency bioimpedance measurement: A design procedure

I Corbacho, JM Carrillo, JL Ausín, MÁ Domínguez… - Electronics, 2022 - mdpi.com
The design of an instrumentation amplifier (IA), based on indirect current feedback and
suited to electrical bioimpedance spectroscopy, is presented. The IA consists of two …

A low power and ultra-high input impedance analog front end based on fully differential difference inverter-based amplifier for biomedical applications

M Vafaei, A Parhizgar, E Abiri, MR Salehi - AEU-International Journal of …, 2021 - Elsevier
In this paper, a low power and low noise analog front end (AFE) is designed for biosignal
acquisition. The first stage is a low noise amplifier (LNA) that is designed by combining the …

Low-power wide-bandwidth CMOS indirect current feedback instrumentation amplifier

JM Carrillo, MA Domínguez, R Pérez-Aloe… - … -International Journal of …, 2020 - Elsevier
The analysis and design trade-offs of a simple and economical technique to implement
wideband low-voltage CMOS instrumentation amplifiers (IAs) based on indirect current …

Area-efficient low-power bandpass Gm-C filter for epileptic seizure detection in 130nm CMOS

R Della Sala, P Monsurrò, G Scotti… - 2019 26th IEEE …, 2019 - ieeexplore.ieee.org
A low-power 6th-order Butterworth bandpass filter has been designed for the front-end of an
integrated neural recording system. The passband has been set to 250-500Hz to allow …

A low-voltage class-AB OTA exploiting adaptive biasing

F Centurelli, A Fava, M Olivieri, P Tommasino… - … -International Journal of …, 2020 - Elsevier
We present a low voltage approach to design an adaptive bias circuit for a class-AB input
stage, and exploit it to design a fully-differential 0.6 V class-AB symmetrical OTA that also …