Multi-channel digital-to-analog converters comprising with a plurality of converter units
US6052074A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 22, 1998 |
| Grant date | Apr 18, 2000 |
| Priority date | — |
| Expiry date | Jun 22, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M1/745
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A multi-channel D/A converter is formed with a plurality of converter units, each having one single input transistor and a plurality of output transistors which together form current mirrors. Mutually corresponding ones of these output transistors of different ones of the converter units, which are switched on and off together, are disposed adjacently and connected together to a trunk power supply line such that the parasitic resistances through the conductive lines connected to the output transistors are alike and the conversion characteristics of the individual converter units also become alike. One common input transistor may be shared by all of the converter units for further improving the conversion characteristic.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.