A low noise multichannel integrated circuit for recording neuronal signals using microelectrode arrays.
Biosens Bioelectron
; 19(7): 749-61, 2004 Feb 15.
Article
en En
| MEDLINE
| ID: mdl-14709394
This paper reports on the development of a fully integrated 32-channel integrated circuit (IC) for recording neuronal signals in neurophysiological experiments using microelectrode arrays. The IC consists of 32 channels of low-noise preamplifiers and bandpass filters, and an output analog multiplexer. The continuous-time RC active filters have a typical passband of 20-2000 Hz; the low and the high cut-off frequencies can be separately controlled by external reference currents. This chip provides a satisfactory signal-to-noise ratio for neuronal signals with amplitudes greater than 50 microV. For the nominal passband setting, an equivalent input noise of 3 microV rms has been achieved. A single channel occupies 0.35 mm(2) of silicon area and dissipates 1.7 mW of power. The chip was fabricated in a 0.7 microm CMOS process.
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Potenciales de Acción
/
Microelectrodos
/
Red Nerviosa
/
Neuronas
Tipo de estudio:
Diagnostic_studies
/
Evaluation_studies
Límite:
Animals
Idioma:
En
Revista:
Biosens Bioelectron
Asunto de la revista:
BIOTECNOLOGIA
Año:
2004
Tipo del documento:
Article
País de afiliación:
Polonia
Pais de publicación:
Reino Unido