Design and measurements of low power multichannel chip for recording and stimulation of neural activity.
Annu Int Conf IEEE Eng Med Biol Soc
; 2012: 4470-4, 2012.
Article
en En
| MEDLINE
| ID: mdl-23366920
A 64-channel Neuro-Stimulation-Recording chip named NRS64 for neural activity measurements has been designed and tested. The NRS64 occupies 5×5 mm² of silicon area and consumes only 25 µW/channel. A low cut-off frequency can be tuned in the 60 mHz-100 Hz range while a high cut-off frequency can be set to 4.7 kHz or 12 kHz. A voltage gain can be set to 139 V/V or 1100 V/V. A measured input referenced noise is 3.7 µV rms in 100 Hz-12 kHz band and 7.6 µV rms in 3 Hz-12 kHz band. A digital correction is used in each channel to tune the low cut-off frequency and offset voltage. Each channel is equipped additionally with a stimulation circuit with an artifact cancellation circuit. The stimulation circuit can be set with 8-bit resolution in six different ranges from 500 nA-512 µA range.
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Procesamiento de Señales Asistido por Computador
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Potenciales de Acción
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Conversión Analogo-Digital
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Estimulación Eléctrica
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Electroencefalografía
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Amplificadores Electrónicos
Idioma:
En
Revista:
Annu Int Conf IEEE Eng Med Biol Soc
Año:
2012
Tipo del documento:
Article
País de afiliación:
Polonia
Pais de publicación:
Estados Unidos