RAMP SIGNAL GENERATOR FOR CALIBRATING RAMP LINEARITY, OPERATING METHOD THEREOF, AND IMAGE SENSOR DEVICE INCLUDING THE SAME

Disclosed is a ramp signal generator. The ramp signal generator includes: a first unit current source including first sub-unit current sources, and configured to output a first unit current during a first time period; and a second unit current source including second sub-unit current sources, and co...

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Bibliographische Detailangaben
Hauptverfasser:	HAN, Dongjae, JUNG, Haneul, YOON, YOUNGHYUN
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRONIC CIRCUITRY ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY PICTORIAL COMMUNICATION, e.g. TELEVISION PULSE TECHNIQUE
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Beschreibung
Zusammenfassung:	Disclosed is a ramp signal generator. The ramp signal generator includes: a first unit current source including first sub-unit current sources, and configured to output a first unit current during a first time period; and a second unit current source including second sub-unit current sources, and configured to output a second unit current during a second time period. The first sub-unit current sources are configured to operate according to first sub-ramp control signals, respectively. The second sub-unit current sources are configured to operate according to second sub-ramp control signals, respectively. n first sub-ramp control signals among the first sub-ramp control signals are activated, and m sub-ramp control signals among the second sub-ramp control signals are activated, n and m being different natural numbers.