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A Reflected Light-receiver With 2nA Sensitivity Using CDS And A Separate Lowpass-filtering Of The Input Signal At Each Clock-phase

Killat, Dirk ; Schmitz, Richard (1995)
A Reflected Light-receiver With 2nA Sensitivity Using CDS And A Separate Lowpass-filtering Of The Input Signal At Each Clock-phase.
8th InternationalConference on Solid-State Sensors and Actuators, and Eurosensors IX.. Stockholm, Schweden (25.06.1995-29.06.1995)
doi: 10.1109/SENSOR.1995.717108
Konferenzveröffentlichung, Bibliographie

Kurzbeschreibung (Abstract)

The design of an integrated receiver for reflected light using correlated double sampling (CDS) is presented. Correlated double sampling has the disadvantage that input signals of high frequencies are folded back to the base band caused by sampling the continuous input signal [1]. However, the circuit presented here uses a new method to limit the bandwidth of the CDS input signal. Two filter-capacitors, one for each clock phase, are periodically connected to the input of the CDS circuit. As the input signal is lowpass filtered by the ohmic output resistance of the optical sensor in conjuction with the filter-capacitors, allasing can be avoided.

Typ des Eintrags: Konferenzveröffentlichung
Erschienen: 1995
Autor(en): Killat, Dirk ; Schmitz, Richard
Art des Eintrags: Bibliographie
Titel: A Reflected Light-receiver With 2nA Sensitivity Using CDS And A Separate Lowpass-filtering Of The Input Signal At Each Clock-phase
Sprache: Englisch
Publikationsjahr: 30 Juni 1995
Verlag: IEEE
Buchtitel: The 8th International Conference on Solid-state Sensors and Actuators and Eurosensors IX: Digest of Technical Papers
Veranstaltungstitel: 8th InternationalConference on Solid-State Sensors and Actuators, and Eurosensors IX.
Veranstaltungsort: Stockholm, Schweden
Veranstaltungsdatum: 25.06.1995-29.06.1995
DOI: 10.1109/SENSOR.1995.717108
Kurzbeschreibung (Abstract):

The design of an integrated receiver for reflected light using correlated double sampling (CDS) is presented. Correlated double sampling has the disadvantage that input signals of high frequencies are folded back to the base band caused by sampling the continuous input signal [1]. However, the circuit presented here uses a new method to limit the bandwidth of the CDS input signal. Two filter-capacitors, one for each clock phase, are periodically connected to the input of the CDS circuit. As the input signal is lowpass filtered by the ohmic output resistance of the optical sensor in conjuction with the filter-capacitors, allasing can be avoided.

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Fachbereich(e)/-gebiet(e): 18 Fachbereich Elektrotechnik und Informationstechnik
Hinterlegungsdatum: 19 Nov 2008 16:23
Letzte Änderung: 01 Jun 2023 12:40
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