Patent ID: 11916562
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Basic communication processes (Electrical engineering)
Classification: CPC H | IPC H

Claim 18:
19. An integrated circuit comprising:
a processor configured to output a digital signal; and
a digital-to-analog converter configured to convert the digital signal into an analog signal,
wherein the digital-to-analog converter comprises:
a plurality of current cells configured to convert the digital signal into the analog signal based on current steering;
a dummy current cell having a same structure as any one of the plurality of current cells; and
a current switch bias circuit configured to generate a first bias voltage that tracks a first voltage of an internal node of the dummy current cell and is applied to an output stage of the plurality of current cells,

wherein the current switch bias circuit adjusts a level of the first bias voltage such that a difference between the first bias voltage and the first voltage is constant.