Comparator stage with DC cut device for single slope analog to digital converter
US11206039B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 18, 2020 |
| Grant date | Dec 21, 2021 |
| Priority date | — |
| Expiry date | Dec 18, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N25/78
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A comparator includes a second stage coupled between a first stage and a third stage. The second stage includes a first transistor coupled to be switched in response to a first output signal coupled to be received from the first stage. The first transistor is coupled generate a second output signal coupled to be received by the third stage. A second transistor is coupled to the first transistor. The first and second transistors are coupled between a first supply voltage and a reference voltage. A second stage current of the second stage is conducted through the first transistor and the second transistor. The second transistor is coupled to be switched in response to a third output signal coupled to be received from the third stage in response to the second output signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.