System and method for a super-resolution digital-to-analog converter based on redundant sensing
A digital-to-analog converter device including a set of components, each component included in the set of components including a number of unit cells, each unit cell being associated with a unit cell size indicating manufacturing specifications of the unit cell is provided by the present disclosure. The digital-to-analog converter device further includes a plurality of switches, each switch included in the plurality of switches being coupled to a component included in the set of components, and an output electrode coupled to the plurality of switches. The digital-to-analog converter device is configured to output an output signal at the output electrode. A first unit cell size associated with a first unit cell included in the set of components is different than a second unit cell size associated with a second unit cell included in the set of components.
1. A digital-to-analog converter device comprising:
a set of components, each component included in the set of components comprising a number of unit cells, each unit cell being associated with a unit cell size indicating manufacturing specifications of the unit cell;
a plurality of switches, each switch included in the plurality of switches being coupled to a component included in the set of components; and
an output electrode coupled to the plurality of switches, the digital-to-analog converter device being configured to output an output signal at the output electrode,
wherein a first unit cell size associated with a first unit cell included in the set of components is different than a second unit cell size associated with a second unit cell included in the set of components, and
wherein a size of the set of the components is adjustable and dependent on a grouping method.
2. The digital-to-analog converter device of claim 1 , wherein the unit cell size comprises a length value and a width value.
3. The digital-to-analog converter device of claim 1 , wherein the unit cell size is associated with a transistor process size.
4. The digital-to-analog converter device of claim 1 , wherein at least one component included in the set of components includes a number of unit cells that is not a power of two.
5. The digital-to-analog converter device of claim 1 , wherein the digital-to-analog converter device is a current digital-to-analog converter.
6. The digital-to-analog converter device of claim 1 , wherein the digital-to-analog converter device further comprises a controller coupled to the plurality of switches, the controller configured to
receive a desired output current;
determine a component configuration based on the desired output current and a predetermined output current value measured at the output electrode, the predetermined output current value associated with the component configuration; and
cause a current pulse to be output from the digital-to-analog converter device based on the component configuration.
7. The digital-to-analog converter device of claim 1 , wherein the grouping method comprises at least one of a uniform grouping method, a half-split grouping method, or a binary-weighted grouping method.