High performance sense amplifier and method thereof for...

Details High performance sense amplifier and method thereof for... High performance sense amplifier and method thereof for...

2007-02-20

2007-02-20

Mai, Son L. (Department: 2827)

Static information storage and retrieval

Read/write circuit

Differential sensing

C365S207000, C327S052000, C327S053000

Reexamination Certificate

active

11253052

ABSTRACT:
A system and method for sensing a current. The system includes an operational amplifier including a first input terminal, a second input terminal, and a first output terminal. The first input terminal is biased to a predetermined voltage, and the second input terminal and the first output terminal are directly connected. Additionally, the system includes a switch coupled to the first output terminal and a first node. The switch is controlled by at least a first control signal. Moreover, the system includes a comparator including a third input terminal, a fourth input terminal, and at least a second output terminal. The comparator is configured to receive a first input signal at the third input terminal and a second input signal at the fourth input terminal. The first input signal and the second input signal are associated with the first node and the predetermined voltage.

REFERENCES:
patent: 5175451 (1992-12-01), Ihara
patent: 6011413 (2000-01-01), Hayakawa et al.
patent: 6205073 (2001-03-01), Naji
patent: 6600690 (2003-07-01), Nahas et al.
patent: 7038959 (2006-05-01), Garni
patent: 2005/0068807 (2005-03-01), Ohsawa
patent: 2006/0126389 (2006-06-01), Sarig

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