Low-Voltage Low-Noise High-CMRR Biopotential Integrated Preamplifier

Carolina Cabrera; Renzo Caballero; María Cecilia Costa-Rauschert; Conrado Rossi-Aicardi; Julián Oreggioni

doi:10.1109/TCSI.2020.3035357

Low-Voltage Low-Noise High-CMRR Biopotential Integrated Preamplifier

Carolina Cabrera, Renzo Caballero, María Cecilia Costa-Rauschert, Conrado Rossi-Aicardi, Julián Oreggioni

King Abdullah University of Science and Technology

Research output: Contribution to journal › Article › peer-review

12 Scopus citations

Abstract

This work presents a novel amplifier architecture which is the input stage of an analog front end targeting the acquisition of biological signals with low voltage supply (1.2 V), low noise, high Common Mode Rejection Ratio (CMRR) and high current efficiency. A prototype, designed and fabricated in a 130 nm CMOS technology, was characterized by simulations and measurements. Our preamplifier presents one of the lowest noise levels reported up-to-date (over the considered bandwidth) while presenting a very competitive performance in other important features. Results from measurements show a bandwidth from 20 Hz to 11 kHz, a CMRR higher than 70 dB, an equivalent input-referred noise as low as 1.3 μVrms. The Noise Efficiency Factor (NEF) at 2.5 and Power Efficiency Factor (PEF) at 7.5 are remarkable results.

Original language	English (US)
Pages (from-to)	1-10
Number of pages	10
Journal	IEEE Transactions on Circuits and Systems I: Regular Papers
DOIs	https://doi.org/10.1109/TCSI.2020.3035357
State	Published - 2020

Access to Document

10.1109/TCSI.2020.3035357

Cite this

@article{9bbd77ac083f4a97b2e7032433ed7567,

title = "Low-Voltage Low-Noise High-CMRR Biopotential Integrated Preamplifier",

abstract = "This work presents a novel amplifier architecture which is the input stage of an analog front end targeting the acquisition of biological signals with low voltage supply (1.2 V), low noise, high Common Mode Rejection Ratio (CMRR) and high current efficiency. A prototype, designed and fabricated in a 130 nm CMOS technology, was characterized by simulations and measurements. Our preamplifier presents one of the lowest noise levels reported up-to-date (over the considered bandwidth) while presenting a very competitive performance in other important features. Results from measurements show a bandwidth from 20 Hz to 11 kHz, a CMRR higher than 70 dB, an equivalent input-referred noise as low as 1.3 μVrms. The Noise Efficiency Factor (NEF) at 2.5 and Power Efficiency Factor (PEF) at 7.5 are remarkable results.",

author = "Carolina Cabrera and Renzo Caballero and Costa-Rauschert, {Mar{\'i}a Cecilia} and Conrado Rossi-Aicardi and Juli{\'a}n Oreggioni",

note = "KAUST Repository Item: Exported on 2021-04-19",

year = "2020",

doi = "10.1109/TCSI.2020.3035357",

language = "English (US)",

pages = "1--10",

journal = "IEEE Transactions on Circuits and Systems I: Regular Papers",

issn = "1558-0806",

publisher = "Institute of Electrical and Electronics Engineers",

}

TY - JOUR

T1 - Low-Voltage Low-Noise High-CMRR Biopotential Integrated Preamplifier

AU - Cabrera, Carolina

AU - Caballero, Renzo

AU - Costa-Rauschert, María Cecilia

AU - Rossi-Aicardi, Conrado

AU - Oreggioni, Julián

N1 - KAUST Repository Item: Exported on 2021-04-19

PY - 2020

Y1 - 2020

N2 - This work presents a novel amplifier architecture which is the input stage of an analog front end targeting the acquisition of biological signals with low voltage supply (1.2 V), low noise, high Common Mode Rejection Ratio (CMRR) and high current efficiency. A prototype, designed and fabricated in a 130 nm CMOS technology, was characterized by simulations and measurements. Our preamplifier presents one of the lowest noise levels reported up-to-date (over the considered bandwidth) while presenting a very competitive performance in other important features. Results from measurements show a bandwidth from 20 Hz to 11 kHz, a CMRR higher than 70 dB, an equivalent input-referred noise as low as 1.3 μVrms. The Noise Efficiency Factor (NEF) at 2.5 and Power Efficiency Factor (PEF) at 7.5 are remarkable results.

AB - This work presents a novel amplifier architecture which is the input stage of an analog front end targeting the acquisition of biological signals with low voltage supply (1.2 V), low noise, high Common Mode Rejection Ratio (CMRR) and high current efficiency. A prototype, designed and fabricated in a 130 nm CMOS technology, was characterized by simulations and measurements. Our preamplifier presents one of the lowest noise levels reported up-to-date (over the considered bandwidth) while presenting a very competitive performance in other important features. Results from measurements show a bandwidth from 20 Hz to 11 kHz, a CMRR higher than 70 dB, an equivalent input-referred noise as low as 1.3 μVrms. The Noise Efficiency Factor (NEF) at 2.5 and Power Efficiency Factor (PEF) at 7.5 are remarkable results.

UR - http://hdl.handle.net/10754/665971

UR - https://ieeexplore.ieee.org/document/9257403/

UR - http://www.scopus.com/inward/record.url?scp=85098749777&partnerID=8YFLogxK

U2 - 10.1109/TCSI.2020.3035357

DO - 10.1109/TCSI.2020.3035357

M3 - Article

SN - 1558-0806

SP - 1

EP - 10

JO - IEEE Transactions on Circuits and Systems I: Regular Papers

JF - IEEE Transactions on Circuits and Systems I: Regular Papers

ER -

Low-Voltage Low-Noise High-CMRR Biopotential Integrated Preamplifier

Abstract

Access to Document

Other files and links

Fingerprint

Cite this