Electrical transmission or interconnection systems – Nonlinear reactor systems – Parametrons
Patent
1987-04-10
1988-12-13
Miller, Stanley D.
Electrical transmission or interconnection systems
Nonlinear reactor systems
Parametrons
307490, 307496, 307497, 307498, 365207, 365208, G01R 1900, G06G 712, G11C 702
Patent
active
047913240
ABSTRACT:
A CMOS sense amplifier for use in a memory comprises two CMOS differential amplifiers. Each differential amplifier receives the same two signals generated from a selected bit line pair and each provides a different one of a complementary pair of signals. Each differential amplifier has a current mirror for loads. Each differential amplifier uses a transistor current source. A transistor will operate as a more ideal current source if it is in saturation. The transistor current source is biased by the current mirror of the differential amplifier of which it is a part. The resulting differential amplifier thus has a transistor current source which is biased closer to saturation than if biased by a normal clock signal which is either at the high or low power supply voltage. The self-biasing aspect avoids the problems associated with generating a special reference voltage for the differential amplifier.
REFERENCES:
patent: 4539494 (1985-09-01), Kurafuji
patent: 4634900 (1986-08-01), Koshizuka
patent: 4644196 (1987-02-01), Flannagan
patent: 4644197 (1987-02-01), Flannagan
patent: 4697112 (1987-09-01), Ohtani et al.
Clingan Jr. James L.
Fisher John A.
Miller Stanley D.
Motorola Inc.
Myers Jeffrey Van
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