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Noise Characteristic Design of CMOS Source Follower and Voltage Amplifier for the Active Semiconductor Microelectrodes for Neural Signal Recording
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Kim, Kyung Hwan | - |
dc.contributor.author | Kim, Sung June | - |
dc.date.accessioned | 2009-09-08T03:56:40Z | - |
dc.date.available | 2009-09-08T03:56:40Z | - |
dc.date.issued | 2000-07 | - |
dc.identifier.citation | Med Biol Eng Comput 38:469-472 | en |
dc.identifier.issn | 0140-0118 (print) | - |
dc.identifier.issn | 1741-0444 (online) | - |
dc.identifier.uri | https://hdl.handle.net/10371/8909 | - |
dc.description.abstract | A noise performance design method for the pre-amplifiers of an active
neural probe is given. The on-chip circuitry of the active neural probe consists of CMOS devices that show high-/ low-frequency noise, so that the device noise can become dominant. Analysis of the signal-to-device-noise ratio (SDNR) for the CMOS source follower buffer and two-stage differential voltage amplifier is given. Closedform expressions for the output noise power are derived and exploited to tailor the parameters that are controllable during circuit design. The output SDNR is calculated considering the real extracellular action potentials, the electrode-electrolyte interface and the noise spectrum of CMOS devices from typical foundries. It is shown that the output device noise power can be much higher than the output signal power if the devices at the input stage of the pre-amplifier are made as small as given fabrication technology permits. Quantitative information of the circuit parameters to achieve an SDNR higher than 5 for neural spikes with 60p V amplitude are provided for both preamplifier types. | en |
dc.description.sponsorship | This work is partly funded by the Ministry of
Health and Welfare, Korea, Grant No. HMP-98-E-1-0006, 1998 1999, by the Basic Research Program of Korea Electronic Technology Institute (KETI)-MEMS, Grant No. 2000-X-5119, 1999 2000, and by the Korea Science and Engineering Foundation through the Nano Bio-Electronics and System Center. | en |
dc.language.iso | en | - |
dc.publisher | Springer Verlag | en |
dc.subject | Extracellular recording | en |
dc.subject | Active neural probe | en |
dc.subject | CMOS | en |
dc.subject | Source follower | en |
dc.subject | Differential amplifier | en |
dc.subject | Signal-to-device-noise ratio | en |
dc.title | Noise Characteristic Design of CMOS Source Follower and Voltage Amplifier for the Active Semiconductor Microelectrodes for Neural Signal Recording | en |
dc.type | Article | en |
dc.contributor.AlternativeAuthor | 김경환 | - |
dc.contributor.AlternativeAuthor | 김성준 | - |
dc.identifier.doi | 10.1007/BF02345018 | - |
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