Sense amplifier for differential voltage detection with low input capacitance
US5508644A · kind A · utility
24Cited by
9References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 28, 1994 |
| Grant date | Apr 16, 1996 |
| Priority date | — |
| Expiry date | Sep 28, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R19/10
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A sense amplifier (10) has a pair of cross-coupled latches (12, 14, 16, 18) connected between a first voltage supply (V.sub.DD) and the sources of two transistors (20, 22). The gates of the two transistors receive a voltage differential to be sensed. The drains of the two transistors are coupled to a second voltage supply (V.sub.SS) through an enabling transistor (24). The resulting sense amplifier is fast, small, and relatively simple to construct.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.