Wide common mode range analog CMOS voltage comparator
US4598215A · kind A · utility
19Cited by
7References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 3, 1983 |
| Grant date | Jul 1, 1986 |
| Priority date | — |
| Expiry date | Nov 3, 2003 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K5/2481
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An improved analog CMOS comparator circuit is described. The improved circuit incorporates an additional CMOS device in the output stage of a conventional differential comparator. The additional device compensates for current imbalances which occur at relatively high common mode voltages thus allowing the improved comparator to operate over a wider range of common mode input voltages.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.