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Ramp voltage generator, image sensing device including the same and method for driving the image sensing device

  • US 9,781,368 B2
  • Filed: 03/29/2016
  • Issued: 10/03/2017
  • Est. Priority Date: 10/28/2015
  • Status: Active Grant
First Claim
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1. A ramp voltage generator, comprising:

  • a correction block suitable for generating a slope correction signal for first and second periods based on a period signal for distinguishing the periods;

    a common bias voltage generation block suitable for generating a common bias voltage based on the slope correction signal and a source bias voltage;

    a first ramp voltage generation block suitable for generating a first ramp voltage having a predetermined slope during the first period based on the common bias voltage and a first ramp group control signal; and

    a second ramp voltage generation block suitable for generating a second ramp voltage having the predetermined slope during the second period based on the common bias voltage and a second ramp group control signal.

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