Digital-to-analog converter and wireless communication apparatus
AssigneeKabushiki Kaisha Toshiba
InventorDaisuke Kurose
Life of this patent
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Abstract
According to one embodiment, a digital-to-analog converter includes a plurality of cells. Each cell includes a current source and a differential switch. The current source includes a first transistor arranged in a first region and connected to either a power source or a ground, a second transistor arranged in a second region which is different from the first region and connected directly or indirectly with the first transistor in a cascode configuration, and a metallic interconnect connecting the first region and the second region electrically. The differential switch includes a pair of transistors, each connected to the second transistor and arranged in the second region.
Claims6
A digital-to-analog converter, comprising a plurality of cells, each cell comprising a current source and a differential switch,
- wherein the current source includes a first transistor arranged in a first region and connected to either a power source or a ground, a second transistor arranged in a second region which is different from the first region and connected directly or indirectly with the first transistor in a cascode configuration, and a metallic interconnect connecting the first region and the second region electrically;
- and
- the differential switch includes a pair of transistors, each connected to the second transistor and arranged in the second region.
Dependencies are inferred from the claim text.