COMPACT ACTIVE PIXEL WITH LOW-NOISE IMAGE FORMATION

COMPACT ACTIVE PIXEL WITH LOW-NOISE IMAGE FORMATION

A low-noise active pixel circuit is disclosed that efficiently suppresses reset (kTC) noise by using a compact preamplifier consisting of a photodetector and only three transistors of identical polarity, in conjunction with ancillary circuits located on an imager's periphery. The use of only th...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser: KOZLOWSKI, LESTER, J
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
BASIC ELECTRIC ELEMENTS
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
PICTORIAL COMMUNICATION, e.g. TELEVISION
SEMICONDUCTOR DEVICES
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Beschreibung
Zusammenfassung:A low-noise active pixel circuit is disclosed that efficiently suppresses reset (kTC) noise by using a compact preamplifier consisting of a photodetector and only three transistors of identical polarity, in conjunction with ancillary circuits located on an imager's periphery. The use of only three transistors with a tapered reset signal allows the optical area to be increased, while still providing a low-noise imager.