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

Claim 0:
1. A current steering digital-to-analog converter comprising:
a plurality of current cells each including a current source circuit and a current switch circuit to selectively output a current in response to a first input signal corresponding to a digital signal;
a dummy current cell including a dummy current source circuit and a dummy current switch circuit to output a current in response to a second input signal; and
a current switch bias circuit coupled to the dummy current cell and configured to generate a first bias voltage that tracks a first voltage of an internal node of the dummy current source circuit and is applied to the current switch circuit,
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.