System and method for multi-dimensional digital- to-analog converter (DAC)

A system comprising:

• a current source;
• a transistor coupled to the current source;
• a first digital-to-analog converter (DAC) comprising a plurality of first cells, each cell of the plurality of first cells comprising a first switch to selectively configure, corresponding to a value of a respective bit of a first digital signal, a first transistor to mirror the current source;
• and
• a second DAC comprising a plurality of second cells, each cell of the plurality of second cells comprising a second switch to selectively couple, corresponding to a value of a respective bit of a second digital signal, a second transistor to a corresponding one of the plurality of first cells,
• wherein the first DAC and the second DAC are configured to output a current corresponding to a result of multiplying values of the first digital signal and the second digital signal, and
• wherein each of the first digital signal and the second digital signal indicates a unary code.

Circuitry comprising:

• a current source;
• a transistor coupled to the current source;
• an output path comprising a first switch to selectively configure, corresponding to a bit of a first digital signal, a first transistor to mirror the current source;
• and
• a plurality of cells, each cell of the plurality of cells comprising a second switch to selectively couple a second transistor to the output path, wherein each of the plurality of cells corresponds to a value of a respective bit of a second digital signal,
• wherein each of the first digital signal and the second digital signal indicates a unary code.