Reference voltage source
US4672304A · kind A · utility
12Cited by
0References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 14, 1986 |
| Grant date | Jun 9, 1987 |
| Priority date | — |
| Expiry date | Jan 14, 2006 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05F3/30
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
The present invention relates to a reference voltage source in CMOS technology. The reference voltage source is based on the use of two compatible bipolar transistors (T1) and (T2) working at different current densities. A transresistance amplifier (1) connected as a negative feedback between the collectors and bases of (T1) and (T2) delivers the reference voltage (V.sub.ref). A conductor block (4) allows sufficient current to be drawn through the resistors (2) and (3) to render neglible the base current of (T1).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.