Circuit and process for sensing data

Details Circuit and process for sensing data Circuit and process for sensing data

1997-03-12

1999-07-27

Ton, My-Trang Nu

Miscellaneous active electrical nonlinear devices, circuits, and

Specific signal discriminating without subsequent control

By amplitude

327 57, 327215, H03K 3356, G11C 706

Patent

active

059296593

ABSTRACT:
A sense amplifier (10) senses data by sensing a differential current signal comprised of a current (I.sub.1) flowing in an input terminal (12) and a current (I.sub.2) flowing in a complementary input terminal (22). During the sensing process, the sense amplifier (10) generates a first current flowing in a first FET (17) in accordance with the current (I.sub.1) flowing through the input terminal (12) and a second current flowing in a second FET (27) in accordance with the current (I.sub.2) flowing through the complementary input terminal (22). Two cross coupled inverters (16, 26) compare the first current (I.sub.1) with the second current (I.sub.2) and generate a differential output voltage signal, thereby sensing the data.

REFERENCES:
patent: 5410197 (1995-04-01), Krenik
patent: 5568438 (1996-10-01), Penchuk
patent: 5657276 (1997-08-01), Pascucci
patent: 5703803 (1997-12-01), Shadan et al.
Evert Seevinck, et al., "Current-Mode Techniques for High-Speed VLSI Circuits with Application to Current Sense Amplifier for CMOS SRAM's", Apr. 1991 IEEE Journal of Solid-State Circuits, vol. 26, No. 4, pp. 525-535.

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