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A self-calibration circuit for a neural spike recording channel

AuthorsRodríguez-Pérez, Alberto ; Ruiz Amaya, Jesús; Delgado-Restituto, Manuel ; Sawan, M.; Rodríguez-Vázquez, Ángel
Issue Date2011
PublisherInstitute of Electrical and Electronics Engineers
CitationIEEE Biomedical Circuits and Systems Conference (BioCAS): 464-467 (2011)
AbstractThis paper presents a self-calibration circuit for a neural spike recording channel. The proposed design tunes the bandwidth of the signal acquisition Band-Pass Filter (BPF), which suffers from process variations corners. It also performs the adjustment of the Programmable Gain Amplifier (PGA) gain to maximize the input voltage range of the analog-to-digital conversion. The circuit, which consists on a frequency-controlled signal generator and a digital processor, operates in foreground, is completely autonomous and integrable in an estimated area of 0.026mm2, with a power consumption around 450nW. The calibration procedure takes less than 250ms to select the configuration whose performance is closest to the required one.
Identifiersdoi: 10.1109/BioCAS.2011.6107828
isbn: 978-1-4577-1469-6
Appears in Collections:(IMSE-CNM) Libros y partes de libros
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