Biopotential integrated preamplifier
Renzo Caballero, Gonzalo Carozo, María Cecilia Costa, Pablo Aguirre, Conrado Rossi, Julián Oreggioni
2020 IEEE 11th Latin American Symposium on Circuits & Systems (LASCAS), San Jose, Costa Rica, 25-28 feb, page 1--4- 2020
Research group(s):  Microelectronica (gme)
Department(s):  Electrónica
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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, low noise, and low power consumption. A prototype was designed and fabricated in a 130 nm CMOS technology, and characterized by simulations and preliminary measurements. It presents an input noise of 1.41 μV rms , a current consumption of 30 μA, and operates from a 1.2 V voltage supply. The bandwidth ranges from 20 Hz to 10 kHz, the gain is 40 dB and the NEF is 2.97.

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» Renzo Caballero
» Gonzalo Carozo
» María Cecilia Costa
» Pablo Aguirre
» Conrado Rossi
» Julián Oreggioni