Signal amplifier circuit and semiconductor memory device using t

Details Signal amplifier circuit and semiconductor memory device using t Signal amplifier circuit and semiconductor memory device using t

1991-03-29

1994-06-14

Ham, Seungsook

Static information storage and retrieval

Read/write circuit

Differential sensing

365208, G11C 706

Patent

active

053216598

ABSTRACT:
A signal amplifier circuit suitable for a semiconductor memory device includes a first current mirror circuit for outputting a first current to a first signal line and for outputting a second mirror current, and a second current mirror circuit for outputting a third current to a second signal line and for outputting a fourth mirror current. The first and second signal line form a pair of complementary signal lines. The amplifier circuit also includes a third current mirror circuit for receiving the second and fourth mirror currents and for outputting an output signal based on a potential difference between the first and second data signal lines.

REFERENCES:
patent: 4649301 (1987-03-01), Van Tran
patent: 4661779 (1987-04-01), Okamoto
patent: 4713797 (1987-12-01), Morton et al.
patent: 4907201 (1990-03-01), Minami et al.
patent: 4984206 (1991-01-01), Komatsu et al.
patent: 5029138 (1991-07-01), Iwashita

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