Patent ID: 11871128
Assignee: SK HYNIX INC.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 4:
5. The image sensing device of claim 4, wherein each of the comparators includes:
a current supply circuit coupled between a supply terminal of a first voltage and a pair of output terminals;
an input circuit coupled between the pair of output terminals and a common node, and suitable for receiving each of the pixel signals and the ramp signal;
a second mirroring element coupled between the common node and a supply terminal of a second voltage, and suitable for generating the operating current corresponding to the reference current based on a corresponding bias voltage;
a compensation element coupled between the supply terminal of the first voltage and an output terminal of the corresponding bias voltage, and suitable for compensating for the bias voltage based on the operating current; and
a current source coupled between the output terminal of the corresponding bias voltage and the supply terminal of the second voltage.