Sense amplifier operable under variable power supply voltage

Details Sense amplifier operable under variable power supply voltage Sense amplifier operable under variable power supply voltage

1990-06-22

1992-08-11

Miller, Stanley D.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307279, 307355, 365205, G11C 1134

Patent

active

051382016

ABSTRACT:
Disclosed is a sense amplifier employing an emitter coupled logic (ECL) circuit. A constant voltage generating circuit independent of a change or a fluctuation of a power supply voltage level is provided. Two current-mirror circuits supply constant currents to the ECL circuit based on a generated constant voltage. Since a constant current independent of the change of power supply voltage level is supplied to the ECL circuit, the ECL circuit reliably converts a small potential difference generated between I/O lines into a current signal. Accordingly, no erroneous reading operation is performed.

REFERENCES:
patent: 4433393 (1984-02-01), Oritani
patent: 4604728 (1986-08-01), Okajima
patent: 4658159 (1987-04-01), Miyamoto
patent: 4670675 (1987-06-01), Donoghue
patent: 4802138 (1989-01-01), Shimamure
patent: 4984207 (1991-01-01), Tateno et al.
patent: 5029127 (1991-07-01), Uchida et al.
patent: 5046050 (1991-09-01), Kertis
"BiCMOS Current Source Reference Network for ULSI BiCMOS with ECL Circuitry", 1989 IEEE International Solid-State Circuits Conference.
Texas Instruments Incorporated, Semiconductor Process and Design Center, Dallas, Tex.

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