RAMP SIGNAL GENERATING DEVICE AND IMAGE SENSOR FOR REDUCING RAMP SIGNAL LATENCY

RAMP SIGNAL GENERATING DEVICE AND IMAGE SENSOR FOR REDUCING RAMP SIGNAL LATENCY

A ramp signal generating device and an image sensor for decreasing the latency of a ramp signal are provided. The ramp signal generating device may include a first circuit configured to detect a capacitance of a parasitic capacitor, a second circuit configured to charge the parasitic capacitor with...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: YOON, Younghyun, HAN, Dongjae, JUNG, Haneul
Format: Patent
Sprache:eng
Schlagworte:
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
PICTORIAL COMMUNICATION, e.g. TELEVISION
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Beschreibung
Zusammenfassung:A ramp signal generating device and an image sensor for decreasing the latency of a ramp signal are provided. The ramp signal generating device may include a first circuit configured to detect a capacitance of a parasitic capacitor, a second circuit configured to charge the parasitic capacitor with a first voltage, and a third circuit configured to receive the capacitance as an input to generate a load current causing the ramp signal with a predetermined slope.