Current sense amplifier for use in a semiconductor memory device

Details Current sense amplifier for use in a semiconductor memory device Current sense amplifier for use in a semiconductor memory device

1996-04-23

1997-08-05

Dinh, Son T.

Static information storage and retrieval

Read/write circuit

Flip-flop used for sensing

365207, 365208, 327 51, 327 55, 327 57, G11C 700

Patent

active

056549288

ABSTRACT:
A current sense amplifier for use in a semiconductor memory device having a pair of sub-I/O lines and a pair of I/O lines includes a first circuit leg having a first PMOS transistor in series with a second NMOS transistor. A second circuit leg has a third PMOS transistor in series with a fourth NMOS transistor. The gates of the PMOS transistors are each cross coupled to the drain of the other PMOS transistor. The gates of the NMOS transistor are each cross coupled to the source of the PMOS transistor in the other circuit leg. The source of each PMOS transistor comprises a sub-Input/Output line with an Input/Output line located between the transistors in each of the legs.

REFERENCES:
patent: 4771194 (1988-09-01), Van Zeghbroeck
patent: 4831287 (1989-05-01), Golab
patent: 5134319 (1992-07-01), Yamaguchi
patent: 5457657 (1995-10-01), Suh

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