Preprint
A sub-µW intracranial EEG integrated preamplifier
Fecha
2022Registro en:
Cabrera, C. y Oreggioni, J. A sub-µW intracranial EEG integrated preamplifier [Preprint]. Publicado en: 2022 IEEE Biomedical Circuits and Systems Conference (BioCAS), Taipei, Taiwan, 13-15 oct 2022. ISSN: 2163-4025. DOI: 10.1109/BioCAS54905.2022.9948541
Autor
Cabrera, Carolina
Oreggioni, Julián
Institución
Resumen
This work presents an amplifier targeting the acquisition of intracranial electroencephalography signals with low power consumption, low voltage supply, low noise, and high common-mode rejection ratio (CMRR). A prototype was designed in a 180 nm FD-SOI CMOS technology and characterized by simulations. It presents an input noise of 3.2 µV rms , a current consumption of 0.5 µA, and it operates from a 1.8 V voltage supply, which represents a power consumption of 0.9 µW. The bandwidth ranges from 0.1 Hz to 1 kHz, the gain is 40 dB, the CMRR is greater than 79.4 dB, and the Noise Efficiency Factor (NEF) is 2.7.