Digital-to-analog converter and wireless communication apparatus
US8682264B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 21, 2011 |
| Grant date | Mar 25, 2014 |
| Priority date | — |
| Expiry date | May 16, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10D89/10
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.