Digital-to-analog conversion

A digital-to-analog converter (DAC) for generating an analog output from a digital input, the DAC comprising:

• a controller configured to generate a control signal based on the digital input;
• and
• a segment cell circuit comprising a plurality of segment cells turned on or off based on the control signal, wherein the segment cell is configured to generate the analog output based on outputs of the plurality of segment cells,
• wherein the plurality of segment cells comprise:
• a plurality of first segment cells, each first segment cell configured to generate a corresponding output based on a corresponding bit included in a first bit group of the digital input;
• a plurality of second segment cells, each second segment cell configured to generate a corresponding output based on a corresponding bit included in a second bit group of the digital input;
• a plurality of third segment cells, each third segment cell configured to generate a corresponding output based on a corresponding bit included in a third bit group of the digital input;
• and
• an additional segment cell configured to generate a corresponding output based on a lowermost bit of the second bit group.

An operation method of a digital-to-analog converter (DAC) for generating an analog output from a digital input, the method comprising:

• receiving the digital input;
• generating a control signal based on the digital input;
• and
• turning on or off a plurality of segment cells based on the control signal,
• wherein the plurality of segment cells comprise:
• a plurality of first segment cells, each first segment cell configured to generate a corresponding output based on a corresponding bit included in a first bit group of the digital input;
• a plurality of second segment cells, each second segment cell configured to generate a corresponding output based on a corresponding bit included in a second bit group of the digital input;
• and
• an additional segment cell configured to generate a corresponding output based on a lowermost bit of the second bit group.