Digital-analog converter and digital-analog converter circuit
US12107599B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 28, 2022 |
| Grant date | Oct 1, 2024 |
| Priority date | — |
| Expiry date | Apr 4, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M1/747
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A digital-analog converter includes a digital-analog converter circuit connected to a first mirror current circuit that receives an additional current obtained by adding a current from a voltage-current converter circuit for generating a current according to a received voltage signal to a shift current from a shift current source and a second mirror current circuit that receives the shift current. The digital-analog converter circuit includes current switching circuits. Each current switching circuit includes a first mirror current source that provides a mirror current from one of the first and the second mirror current circuit, a second mirror current source that provides a mirror current from the other, and a switch circuit that determines whether the first and the second mirror current source of each current switching circuit contribute to a value of an analog signal at an D/A output in response to a decoded signal value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.